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Finding the Fourth Proportional to 18,188.17, 25,097.65 and 10,230.23

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Solution

The fourth proportional to 18,188.17, 25,097.65 and 10,230.23 is: 14,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.17 : 25,097.65 = 10,230.23 : x
  2. Step 2: Convert to fraction form
    18,188.17/25,097.65 = 10,230.23/x
  3. Step 3: Cross multiply
    18,188.17x = 25,097.65 × 10,230.23
  4. Step 4: Simplify right side
    18,188.17x = 256,754,627.95
  5. Step 5: Solve for x
    x = 256,754,627.95/18,188.17
  6. Step 6: Final answer
    x = 14,116.57

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Half scale
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Double scale
Find fourth proportional to 18,189.17, 25,099.03 and 10,231.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.