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Finding the Fourth Proportional to 5,045.70, 6,963 and 2,921.52

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Solution

The fourth proportional to 5,045.70, 6,963 and 2,921.52 is: 4,031.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,045.70 : 6,963 = 2,921.52 : x
  2. Step 2: Convert to fraction form
    5,045.70/6,963 = 2,921.52/x
  3. Step 3: Cross multiply
    5,045.70x = 6,963 × 2,921.52
  4. Step 4: Simplify right side
    5,045.70x = 20,342,543.76
  5. Step 5: Solve for x
    x = 20,342,543.76/5,045.70
  6. Step 6: Final answer
    x = 4,031.66

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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.