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Finding the Fourth Proportional to 40,650.04, 60,978.48 and 15,689.08

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Solution

The fourth proportional to 40,650.04, 60,978.48 and 15,689.08 is: 23,534.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,650.04 : 60,978.48 = 15,689.08 : x
  2. Step 2: Convert to fraction form
    40,650.04/60,978.48 = 15,689.08/x
  3. Step 3: Cross multiply
    40,650.04x = 60,978.48 × 15,689.08
  4. Step 4: Simplify right side
    40,650.04x = 956,696,251.00
  5. Step 5: Solve for x
    x = 956,696,251.00/40,650.04
  6. Step 6: Final answer
    x = 23,534.94

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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.