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Finding the Fourth Proportional to 52,710.94, 79,044.54 and 19,432.90

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Solution

The fourth proportional to 52,710.94, 79,044.54 and 19,432.90 is: 29,141.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,710.94 : 79,044.54 = 19,432.90 : x
  2. Step 2: Convert to fraction form
    52,710.94/79,044.54 = 19,432.90/x
  3. Step 3: Cross multiply
    52,710.94x = 79,044.54 × 19,432.90
  4. Step 4: Simplify right side
    52,710.94x = 1,536,064,641.37
  5. Step 5: Solve for x
    x = 1,536,064,641.37/52,710.94
  6. Step 6: Final answer
    x = 29,141.29

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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.