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Finding the Fourth Proportional to 44,751.68, 67,138.32 and 13,590.08

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Solution

The fourth proportional to 44,751.68, 67,138.32 and 13,590.08 is: 20,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,751.68 : 67,138.32 = 13,590.08 : x
  2. Step 2: Convert to fraction form
    44,751.68/67,138.32 = 13,590.08/x
  3. Step 3: Cross multiply
    44,751.68x = 67,138.32 × 13,590.08
  4. Step 4: Simplify right side
    44,751.68x = 912,415,139.87
  5. Step 5: Solve for x
    x = 912,415,139.87/44,751.68
  6. Step 6: Final answer
    x = 20,388.40

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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.