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Finding the Fourth Proportional to 15,672.53, 23,517.99 and 5,818.65

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Solution

The fourth proportional to 15,672.53, 23,517.99 and 5,818.65 is: 8,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.53 : 23,517.99 = 5,818.65 : x
  2. Step 2: Convert to fraction form
    15,672.53/23,517.99 = 5,818.65/x
  3. Step 3: Cross multiply
    15,672.53x = 23,517.99 × 5,818.65
  4. Step 4: Simplify right side
    15,672.53x = 136,842,952.51
  5. Step 5: Solve for x
    x = 136,842,952.51/15,672.53
  6. Step 6: Final answer
    x = 8,731.39

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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.