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Finding the Fourth Proportional to 7,690.01, 10,613.57 and 7,339.41

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Solution

The fourth proportional to 7,690.01, 10,613.57 and 7,339.41 is: 10,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.01 : 10,613.57 = 7,339.41 : x
  2. Step 2: Convert to fraction form
    7,690.01/10,613.57 = 7,339.41/x
  3. Step 3: Cross multiply
    7,690.01x = 10,613.57 × 7,339.41
  4. Step 4: Simplify right side
    7,690.01x = 77,897,252.03
  5. Step 5: Solve for x
    x = 77,897,252.03/7,690.01
  6. Step 6: Final answer
    x = 10,129.68

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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.