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Finding the Fourth Proportional to 12,557.46, 18,835.92 and 6,725.46

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Solution

The fourth proportional to 12,557.46, 18,835.92 and 6,725.46 is: 10,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.46 : 18,835.92 = 6,725.46 : x
  2. Step 2: Convert to fraction form
    12,557.46/18,835.92 = 6,725.46/x
  3. Step 3: Cross multiply
    12,557.46x = 18,835.92 × 6,725.46
  4. Step 4: Simplify right side
    12,557.46x = 126,680,226.52
  5. Step 5: Solve for x
    x = 126,680,226.52/12,557.46
  6. Step 6: Final answer
    x = 10,088.05

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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.