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Finding the Fourth Proportional to 40,468.64, 60,703.54 and 15,509.95

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Solution

The fourth proportional to 40,468.64, 60,703.54 and 15,509.95 is: 23,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,468.64 : 60,703.54 = 15,509.95 : x
  2. Step 2: Convert to fraction form
    40,468.64/60,703.54 = 15,509.95/x
  3. Step 3: Cross multiply
    40,468.64x = 60,703.54 × 15,509.95
  4. Step 4: Simplify right side
    40,468.64x = 941,508,679.69
  5. Step 5: Solve for x
    x = 941,508,679.69/40,468.64
  6. Step 6: Final answer
    x = 23,265.15

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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.