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Finding the Fourth Proportional to 46,078.88, 69,129.28 and 14,914.13

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Solution

The fourth proportional to 46,078.88, 69,129.28 and 14,914.13 is: 22,374.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,078.88 : 69,129.28 = 14,914.13 : x
  2. Step 2: Convert to fraction form
    46,078.88/69,129.28 = 14,914.13/x
  3. Step 3: Cross multiply
    46,078.88x = 69,129.28 × 14,914.13
  4. Step 4: Simplify right side
    46,078.88x = 1,031,002,741.72
  5. Step 5: Solve for x
    x = 1,031,002,741.72/46,078.88
  6. Step 6: Final answer
    x = 22,374.74

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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.