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Finding the Fourth Proportional to 61,931.70, 92,897.55 and 36,999.90

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Solution

The fourth proportional to 61,931.70, 92,897.55 and 36,999.90 is: 55,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,931.70 : 92,897.55 = 36,999.90 : x
  2. Step 2: Convert to fraction form
    61,931.70/92,897.55 = 36,999.90/x
  3. Step 3: Cross multiply
    61,931.70x = 92,897.55 × 36,999.90
  4. Step 4: Simplify right side
    61,931.70x = 3,437,200,060.25
  5. Step 5: Solve for x
    x = 3,437,200,060.25/61,931.70
  6. Step 6: Final answer
    x = 55,499.85

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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.