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Finding the Fourth Proportional to 62,864.40, 86,745.56 and 36,005.30

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Solution

The fourth proportional to 62,864.40, 86,745.56 and 36,005.30 is: 49,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,864.40 : 86,745.56 = 36,005.30 : x
  2. Step 2: Convert to fraction form
    62,864.40/86,745.56 = 36,005.30/x
  3. Step 3: Cross multiply
    62,864.40x = 86,745.56 × 36,005.30
  4. Step 4: Simplify right side
    62,864.40x = 3,123,299,911.47
  5. Step 5: Solve for x
    x = 3,123,299,911.47/62,864.40
  6. Step 6: Final answer
    x = 49,683.13

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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.