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Finding the Fourth Proportional to 10,374.63, 15,562.21 and 3,449.13

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Solution

The fourth proportional to 10,374.63, 15,562.21 and 3,449.13 is: 5,173.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,374.63 : 15,562.21 = 3,449.13 : x
  2. Step 2: Convert to fraction form
    10,374.63/15,562.21 = 3,449.13/x
  3. Step 3: Cross multiply
    10,374.63x = 15,562.21 × 3,449.13
  4. Step 4: Simplify right side
    10,374.63x = 53,676,085.38
  5. Step 5: Solve for x
    x = 53,676,085.38/10,374.63
  6. Step 6: Final answer
    x = 5,173.78

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1.5x scale

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.