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Finding the Fourth Proportional to 61,332.60, 91,948.62 and 31,758.86

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Solution

The fourth proportional to 61,332.60, 91,948.62 and 31,758.86 is: 47,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,332.60 : 91,948.62 = 31,758.86 : x
  2. Step 2: Convert to fraction form
    61,332.60/91,948.62 = 31,758.86/x
  3. Step 3: Cross multiply
    61,332.60x = 91,948.62 × 31,758.86
  4. Step 4: Simplify right side
    61,332.60x = 2,920,183,349.77
  5. Step 5: Solve for x
    x = 2,920,183,349.77/61,332.60
  6. Step 6: Final answer
    x = 47,612.25

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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.