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Finding the Fourth Proportional to 60,872.72, 91,309.08 and 16,499.47

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Solution

The fourth proportional to 60,872.72, 91,309.08 and 16,499.47 is: 24,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,872.72 : 91,309.08 = 16,499.47 : x
  2. Step 2: Convert to fraction form
    60,872.72/91,309.08 = 16,499.47/x
  3. Step 3: Cross multiply
    60,872.72x = 91,309.08 × 16,499.47
  4. Step 4: Simplify right side
    60,872.72x = 1,506,551,426.19
  5. Step 5: Solve for x
    x = 1,506,551,426.19/60,872.72
  6. Step 6: Final answer
    x = 24,749.21

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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.