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Finding the Fourth Proportional to 8,617.34, 12,873.63 and 5,472.16

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Solution

The fourth proportional to 8,617.34, 12,873.63 and 5,472.16 is: 8,174.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.34 : 12,873.63 = 5,472.16 : x
  2. Step 2: Convert to fraction form
    8,617.34/12,873.63 = 5,472.16/x
  3. Step 3: Cross multiply
    8,617.34x = 12,873.63 × 5,472.16
  4. Step 4: Simplify right side
    8,617.34x = 70,446,551.48
  5. Step 5: Solve for x
    x = 70,446,551.48/8,617.34
  6. Step 6: Final answer
    x = 8,174.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.