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Finding the Fourth Proportional to 12,752.38, 17,595.55 and 7,444.79

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Solution

The fourth proportional to 12,752.38, 17,595.55 and 7,444.79 is: 10,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.38 : 17,595.55 = 7,444.79 : x
  2. Step 2: Convert to fraction form
    12,752.38/17,595.55 = 7,444.79/x
  3. Step 3: Cross multiply
    12,752.38x = 17,595.55 × 7,444.79
  4. Step 4: Simplify right side
    12,752.38x = 130,995,068.09
  5. Step 5: Solve for x
    x = 130,995,068.09/12,752.38
  6. Step 6: Final answer
    x = 10,272.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.