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Finding the Fourth Proportional to 43,125.66, 64,687.95 and 15,045.66

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Solution

The fourth proportional to 43,125.66, 64,687.95 and 15,045.66 is: 22,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.66 : 64,687.95 = 15,045.66 : x
  2. Step 2: Convert to fraction form
    43,125.66/64,687.95 = 15,045.66/x
  3. Step 3: Cross multiply
    43,125.66x = 64,687.95 × 15,045.66
  4. Step 4: Simplify right side
    43,125.66x = 973,272,901.80
  5. Step 5: Solve for x
    x = 973,272,901.80/43,125.66
  6. Step 6: Final answer
    x = 22,568.30

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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.