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Finding the Fourth Proportional to 18,275.58, 25,220.84 and 10,318.14

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Solution

The fourth proportional to 18,275.58, 25,220.84 and 10,318.14 is: 14,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.58 : 25,220.84 = 10,318.14 : x
  2. Step 2: Convert to fraction form
    18,275.58/25,220.84 = 10,318.14/x
  3. Step 3: Cross multiply
    18,275.58x = 25,220.84 × 10,318.14
  4. Step 4: Simplify right side
    18,275.58x = 260,232,106.45
  5. Step 5: Solve for x
    x = 260,232,106.45/18,275.58
  6. Step 6: Final answer
    x = 14,239.34

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Double scale
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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.