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Finding the Fourth Proportional to 9,348.42, 12,889.12 and 5,985.71

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Solution

The fourth proportional to 9,348.42, 12,889.12 and 5,985.71 is: 8,252.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,348.42 : 12,889.12 = 5,985.71 : x
  2. Step 2: Convert to fraction form
    9,348.42/12,889.12 = 5,985.71/x
  3. Step 3: Cross multiply
    9,348.42x = 12,889.12 × 5,985.71
  4. Step 4: Simplify right side
    9,348.42x = 77,150,534.48
  5. Step 5: Solve for x
    x = 77,150,534.48/9,348.42
  6. Step 6: Final answer
    x = 8,252.79

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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.