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Finding the Fourth Proportional to 8,876.48, 13,292.01 and 8,613.74

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Solution

The fourth proportional to 8,876.48, 13,292.01 and 8,613.74 is: 12,898.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.48 : 13,292.01 = 8,613.74 : x
  2. Step 2: Convert to fraction form
    8,876.48/13,292.01 = 8,613.74/x
  3. Step 3: Cross multiply
    8,876.48x = 13,292.01 × 8,613.74
  4. Step 4: Simplify right side
    8,876.48x = 114,493,918.22
  5. Step 5: Solve for x
    x = 114,493,918.22/8,876.48
  6. Step 6: Final answer
    x = 12,898.57

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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.