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Finding the Fourth Proportional to 3,031.98, 4,547.82 and 951.66

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Solution

The fourth proportional to 3,031.98, 4,547.82 and 951.66 is: 1,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.98 : 4,547.82 = 951.66 : x
  2. Step 2: Convert to fraction form
    3,031.98/4,547.82 = 951.66/x
  3. Step 3: Cross multiply
    3,031.98x = 4,547.82 × 951.66
  4. Step 4: Simplify right side
    3,031.98x = 4,327,978.38
  5. Step 5: Solve for x
    x = 4,327,978.38/3,031.98
  6. Step 6: Final answer
    x = 1,427.44

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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.