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Finding the Fourth Proportional to 9,239.16, 12,750.12 and 5,047.38

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Solution

The fourth proportional to 9,239.16, 12,750.12 and 5,047.38 is: 6,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.16 : 12,750.12 = 5,047.38 : x
  2. Step 2: Convert to fraction form
    9,239.16/12,750.12 = 5,047.38/x
  3. Step 3: Cross multiply
    9,239.16x = 12,750.12 × 5,047.38
  4. Step 4: Simplify right side
    9,239.16x = 64,354,700.69
  5. Step 5: Solve for x
    x = 64,354,700.69/9,239.16
  6. Step 6: Final answer
    x = 6,965.43

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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.