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Finding the Fourth Proportional to 44,978.16, 67,468.16 and 15,429.96

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Solution

The fourth proportional to 44,978.16, 67,468.16 and 15,429.96 is: 23,145.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,978.16 : 67,468.16 = 15,429.96 : x
  2. Step 2: Convert to fraction form
    44,978.16/67,468.16 = 15,429.96/x
  3. Step 3: Cross multiply
    44,978.16x = 67,468.16 × 15,429.96
  4. Step 4: Simplify right side
    44,978.16x = 1,041,031,010.07
  5. Step 5: Solve for x
    x = 1,041,031,010.07/44,978.16
  6. Step 6: Final answer
    x = 23,145.26

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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.