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Finding the Fourth Proportional to 15,060.65, 20,787.15 and 10,025.09

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Solution

The fourth proportional to 15,060.65, 20,787.15 and 10,025.09 is: 13,836.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.65 : 20,787.15 = 10,025.09 : x
  2. Step 2: Convert to fraction form
    15,060.65/20,787.15 = 10,025.09/x
  3. Step 3: Cross multiply
    15,060.65x = 20,787.15 × 10,025.09
  4. Step 4: Simplify right side
    15,060.65x = 208,393,049.59
  5. Step 5: Solve for x
    x = 208,393,049.59/15,060.65
  6. Step 6: Final answer
    x = 13,836.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.