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Finding the Fourth Proportional to 61,797.76, 85,327.68 and 37,957.12

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Solution

The fourth proportional to 61,797.76, 85,327.68 and 37,957.12 is: 52,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,797.76 : 85,327.68 = 37,957.12 : x
  2. Step 2: Convert to fraction form
    61,797.76/85,327.68 = 37,957.12/x
  3. Step 3: Cross multiply
    61,797.76x = 85,327.68 × 37,957.12
  4. Step 4: Simplify right side
    61,797.76x = 3,238,792,989.08
  5. Step 5: Solve for x
    x = 3,238,792,989.08/61,797.76
  6. Step 6: Final answer
    x = 52,409.55

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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.