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Finding the Fourth Proportional to 8,707.10, 13,062.68 and 6,934.88

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Solution

The fourth proportional to 8,707.10, 13,062.68 and 6,934.88 is: 10,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.10 : 13,062.68 = 6,934.88 : x
  2. Step 2: Convert to fraction form
    8,707.10/13,062.68 = 6,934.88/x
  3. Step 3: Cross multiply
    8,707.10x = 13,062.68 × 6,934.88
  4. Step 4: Simplify right side
    8,707.10x = 90,588,070.30
  5. Step 5: Solve for x
    x = 90,588,070.30/8,707.10
  6. Step 6: Final answer
    x = 10,403.93

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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.