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Finding the Fourth Proportional to 8,613.99, 11,888.52 and 5,030.13

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Solution

The fourth proportional to 8,613.99, 11,888.52 and 5,030.13 is: 6,942.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.99 : 11,888.52 = 5,030.13 : x
  2. Step 2: Convert to fraction form
    8,613.99/11,888.52 = 5,030.13/x
  3. Step 3: Cross multiply
    8,613.99x = 11,888.52 × 5,030.13
  4. Step 4: Simplify right side
    8,613.99x = 59,800,801.11
  5. Step 5: Solve for x
    x = 59,800,801.11/8,613.99
  6. Step 6: Final answer
    x = 6,942.29

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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.