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Finding the Fourth Proportional to 9,111.53, 13,667.28 and 7,034.55

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Solution

The fourth proportional to 9,111.53, 13,667.28 and 7,034.55 is: 10,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.53 : 13,667.28 = 7,034.55 : x
  2. Step 2: Convert to fraction form
    9,111.53/13,667.28 = 7,034.55/x
  3. Step 3: Cross multiply
    9,111.53x = 13,667.28 × 7,034.55
  4. Step 4: Simplify right side
    9,111.53x = 96,143,164.52
  5. Step 5: Solve for x
    x = 96,143,164.52/9,111.53
  6. Step 6: Final answer
    x = 10,551.82

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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.