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Finding the Fourth Proportional to 5,398.08, 7,447.20 and 3,510.08

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Solution

The fourth proportional to 5,398.08, 7,447.20 and 3,510.08 is: 4,842.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.08 : 7,447.20 = 3,510.08 : x
  2. Step 2: Convert to fraction form
    5,398.08/7,447.20 = 3,510.08/x
  3. Step 3: Cross multiply
    5,398.08x = 7,447.20 × 3,510.08
  4. Step 4: Simplify right side
    5,398.08x = 26,140,267.78
  5. Step 5: Solve for x
    x = 26,140,267.78/5,398.08
  6. Step 6: Final answer
    x = 4,842.51

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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.