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Finding the Fourth Proportional to 5,508.57, 7,602.95 and 5,065.77

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Solution

The fourth proportional to 5,508.57, 7,602.95 and 5,065.77 is: 6,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,508.57 : 7,602.95 = 5,065.77 : x
  2. Step 2: Convert to fraction form
    5,508.57/7,602.95 = 5,065.77/x
  3. Step 3: Cross multiply
    5,508.57x = 7,602.95 × 5,065.77
  4. Step 4: Simplify right side
    5,508.57x = 38,514,770.69
  5. Step 5: Solve for x
    x = 38,514,770.69/5,508.57
  6. Step 6: Final answer
    x = 6,991.79

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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.