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Finding the Fourth Proportional to 62,107.20, 93,160.80 and 20,554.20

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Solution

The fourth proportional to 62,107.20, 93,160.80 and 20,554.20 is: 30,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,107.20 : 93,160.80 = 20,554.20 : x
  2. Step 2: Convert to fraction form
    62,107.20/93,160.80 = 20,554.20/x
  3. Step 3: Cross multiply
    62,107.20x = 93,160.80 × 20,554.20
  4. Step 4: Simplify right side
    62,107.20x = 1,914,845,715.36
  5. Step 5: Solve for x
    x = 1,914,845,715.36/62,107.20
  6. Step 6: Final answer
    x = 30,831.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.