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Finding the Fourth Proportional to 41,135.60, 61,681.80 and 14,836.40

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Solution

The fourth proportional to 41,135.60, 61,681.80 and 14,836.40 is: 22,246.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,135.60 : 61,681.80 = 14,836.40 : x
  2. Step 2: Convert to fraction form
    41,135.60/61,681.80 = 14,836.40/x
  3. Step 3: Cross multiply
    41,135.60x = 61,681.80 × 14,836.40
  4. Step 4: Simplify right side
    41,135.60x = 915,135,857.52
  5. Step 5: Solve for x
    x = 915,135,857.52/41,135.60
  6. Step 6: Final answer
    x = 22,246.81

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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.