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Finding the Fourth Proportional to 40,934.70, 61,402.05 and 13,232.70

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Solution

The fourth proportional to 40,934.70, 61,402.05 and 13,232.70 is: 19,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,934.70 : 61,402.05 = 13,232.70 : x
  2. Step 2: Convert to fraction form
    40,934.70/61,402.05 = 13,232.70/x
  3. Step 3: Cross multiply
    40,934.70x = 61,402.05 × 13,232.70
  4. Step 4: Simplify right side
    40,934.70x = 812,514,907.04
  5. Step 5: Solve for x
    x = 812,514,907.04/40,934.70
  6. Step 6: Final answer
    x = 19,849.05

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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.