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Finding the Fourth Proportional to 8,761.42, 12,070.02 and 6,104.08

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Solution

The fourth proportional to 8,761.42, 12,070.02 and 6,104.08 is: 8,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.42 : 12,070.02 = 6,104.08 : x
  2. Step 2: Convert to fraction form
    8,761.42/12,070.02 = 6,104.08/x
  3. Step 3: Cross multiply
    8,761.42x = 12,070.02 × 6,104.08
  4. Step 4: Simplify right side
    8,761.42x = 73,676,367.68
  5. Step 5: Solve for x
    x = 73,676,367.68/8,761.42
  6. Step 6: Final answer
    x = 8,409.18

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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.