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Finding the Fourth Proportional to 3,353.95, 5,031.29 and 1,132.71

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Solution

The fourth proportional to 3,353.95, 5,031.29 and 1,132.71 is: 1,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.95 : 5,031.29 = 1,132.71 : x
  2. Step 2: Convert to fraction form
    3,353.95/5,031.29 = 1,132.71/x
  3. Step 3: Cross multiply
    3,353.95x = 5,031.29 × 1,132.71
  4. Step 4: Simplify right side
    3,353.95x = 5,698,992.50
  5. Step 5: Solve for x
    x = 5,698,992.50/3,353.95
  6. Step 6: Final answer
    x = 1,699.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.