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Finding the Fourth Proportional to 61,901.88, 92,854.05 and 20,348.88

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Solution

The fourth proportional to 61,901.88, 92,854.05 and 20,348.88 is: 30,523.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,901.88 : 92,854.05 = 20,348.88 : x
  2. Step 2: Convert to fraction form
    61,901.88/92,854.05 = 20,348.88/x
  3. Step 3: Cross multiply
    61,901.88x = 92,854.05 × 20,348.88
  4. Step 4: Simplify right side
    61,901.88x = 1,889,475,920.96
  5. Step 5: Solve for x
    x = 1,889,475,920.96/61,901.88
  6. Step 6: Final answer
    x = 30,523.72

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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.