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Finding the Fourth Proportional to 60,275.82, 90,404.84 and 15,905.69

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Solution

The fourth proportional to 60,275.82, 90,404.84 and 15,905.69 is: 23,856.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,275.82 : 90,404.84 = 15,905.69 : x
  2. Step 2: Convert to fraction form
    60,275.82/90,404.84 = 15,905.69/x
  3. Step 3: Cross multiply
    60,275.82x = 90,404.84 × 15,905.69
  4. Step 4: Simplify right side
    60,275.82x = 1,437,950,827.99
  5. Step 5: Solve for x
    x = 1,437,950,827.99/60,275.82
  6. Step 6: Final answer
    x = 23,856.18

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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.