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Finding the Fourth Proportional to 5,547.52, 7,655.52 and 3,189.60

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Solution

The fourth proportional to 5,547.52, 7,655.52 and 3,189.60 is: 4,401.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,547.52 : 7,655.52 = 3,189.60 : x
  2. Step 2: Convert to fraction form
    5,547.52/7,655.52 = 3,189.60/x
  3. Step 3: Cross multiply
    5,547.52x = 7,655.52 × 3,189.60
  4. Step 4: Simplify right side
    5,547.52x = 24,418,046.59
  5. Step 5: Solve for x
    x = 24,418,046.59/5,547.52
  6. Step 6: Final answer
    x = 4,401.61

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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.