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Finding the Fourth Proportional to 7,398.96, 10,207.95 and 4,747.80

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Solution

The fourth proportional to 7,398.96, 10,207.95 and 4,747.80 is: 6,550.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.96 : 10,207.95 = 4,747.80 : x
  2. Step 2: Convert to fraction form
    7,398.96/10,207.95 = 4,747.80/x
  3. Step 3: Cross multiply
    7,398.96x = 10,207.95 × 4,747.80
  4. Step 4: Simplify right side
    7,398.96x = 48,465,305.01
  5. Step 5: Solve for x
    x = 48,465,305.01/7,398.96
  6. Step 6: Final answer
    x = 6,550.29

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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.