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Finding the Fourth Proportional to 9,347.72, 13,988.67 and 5,839.38

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Solution

The fourth proportional to 9,347.72, 13,988.67 and 5,839.38 is: 8,738.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,347.72 : 13,988.67 = 5,839.38 : x
  2. Step 2: Convert to fraction form
    9,347.72/13,988.67 = 5,839.38/x
  3. Step 3: Cross multiply
    9,347.72x = 13,988.67 × 5,839.38
  4. Step 4: Simplify right side
    9,347.72x = 81,685,159.82
  5. Step 5: Solve for x
    x = 81,685,159.82/9,347.72
  6. Step 6: Final answer
    x = 8,738.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.