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Finding the Fourth Proportional to 61,966.80, 92,950.20 and 38,606.40

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Solution

The fourth proportional to 61,966.80, 92,950.20 and 38,606.40 is: 57,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,966.80 : 92,950.20 = 38,606.40 : x
  2. Step 2: Convert to fraction form
    61,966.80/92,950.20 = 38,606.40/x
  3. Step 3: Cross multiply
    61,966.80x = 92,950.20 × 38,606.40
  4. Step 4: Simplify right side
    61,966.80x = 3,588,472,601.28
  5. Step 5: Solve for x
    x = 3,588,472,601.28/61,966.80
  6. Step 6: Final answer
    x = 57,909.60

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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.