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Finding the Fourth Proportional to 61,515.99, 92,276.55 and 31,914.81

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Solution

The fourth proportional to 61,515.99, 92,276.55 and 31,914.81 is: 47,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,515.99 : 92,276.55 = 31,914.81 : x
  2. Step 2: Convert to fraction form
    61,515.99/92,276.55 = 31,914.81/x
  3. Step 3: Cross multiply
    61,515.99x = 92,276.55 × 31,914.81
  4. Step 4: Simplify right side
    61,515.99x = 2,944,988,560.71
  5. Step 5: Solve for x
    x = 2,944,988,560.71/61,515.99
  6. Step 6: Final answer
    x = 47,873.55

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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.