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Finding the Fourth Proportional to 61,972.48, 85,513.12 and 36,463.68

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Solution

The fourth proportional to 61,972.48, 85,513.12 and 36,463.68 is: 50,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,972.48 : 85,513.12 = 36,463.68 : x
  2. Step 2: Convert to fraction form
    61,972.48/85,513.12 = 36,463.68/x
  3. Step 3: Cross multiply
    61,972.48x = 85,513.12 × 36,463.68
  4. Step 4: Simplify right side
    61,972.48x = 3,118,123,043.48
  5. Step 5: Solve for x
    x = 3,118,123,043.48/61,972.48
  6. Step 6: Final answer
    x = 50,314.64

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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.