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Finding the Fourth Proportional to 50,386.72, 75,476.40 and 29,560

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Solution

The fourth proportional to 50,386.72, 75,476.40 and 29,560 is: 44,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,386.72 : 75,476.40 = 29,560 : x
  2. Step 2: Convert to fraction form
    50,386.72/75,476.40 = 29,560/x
  3. Step 3: Cross multiply
    50,386.72x = 75,476.40 × 29,560
  4. Step 4: Simplify right side
    50,386.72x = 2,231,082,384
  5. Step 5: Solve for x
    x = 2,231,082,384/50,386.72
  6. Step 6: Final answer
    x = 44,279.17

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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.