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Finding the Fourth Proportional to 18,185.09, 25,094.54 and 10,228.19

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Solution

The fourth proportional to 18,185.09, 25,094.54 and 10,228.19 is: 14,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.09 : 25,094.54 = 10,228.19 : x
  2. Step 2: Convert to fraction form
    18,185.09/25,094.54 = 10,228.19/x
  3. Step 3: Cross multiply
    18,185.09x = 25,094.54 × 10,228.19
  4. Step 4: Simplify right side
    18,185.09x = 256,671,623.18
  5. Step 5: Solve for x
    x = 256,671,623.18/18,185.09
  6. Step 6: Final answer
    x = 14,114.40

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Half scale
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Double scale
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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.