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Finding the Fourth Proportional to 62,493.91, 93,750.58 and 20,931.19

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Solution

The fourth proportional to 62,493.91, 93,750.58 and 20,931.19 is: 31,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,493.91 : 93,750.58 = 20,931.19 : x
  2. Step 2: Convert to fraction form
    62,493.91/93,750.58 = 20,931.19/x
  3. Step 3: Cross multiply
    62,493.91x = 93,750.58 × 20,931.19
  4. Step 4: Simplify right side
    62,493.91x = 1,962,310,994.38
  5. Step 5: Solve for x
    x = 1,962,310,994.38/62,493.91
  6. Step 6: Final answer
    x = 31,400.04

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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.