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Finding the Fourth Proportional to 5,616.10, 7,746.03 and 4,123.54

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Solution

The fourth proportional to 5,616.10, 7,746.03 and 4,123.54 is: 5,687.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.10 : 7,746.03 = 4,123.54 : x
  2. Step 2: Convert to fraction form
    5,616.10/7,746.03 = 4,123.54/x
  3. Step 3: Cross multiply
    5,616.10x = 7,746.03 × 4,123.54
  4. Step 4: Simplify right side
    5,616.10x = 31,941,064.55
  5. Step 5: Solve for x
    x = 31,941,064.55/5,616.10
  6. Step 6: Final answer
    x = 5,687.41

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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.