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Finding the Fourth Proportional to 8,407.68, 12,607.86 and 2,562.93

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Solution

The fourth proportional to 8,407.68, 12,607.86 and 2,562.93 is: 3,843.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,407.68 : 12,607.86 = 2,562.93 : x
  2. Step 2: Convert to fraction form
    8,407.68/12,607.86 = 2,562.93/x
  3. Step 3: Cross multiply
    8,407.68x = 12,607.86 × 2,562.93
  4. Step 4: Simplify right side
    8,407.68x = 32,313,062.63
  5. Step 5: Solve for x
    x = 32,313,062.63/8,407.68
  6. Step 6: Final answer
    x = 3,843.28

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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.