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Finding the Fourth Proportional to 9,152.80, 13,732.49 and 3,603.07

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Solution

The fourth proportional to 9,152.80, 13,732.49 and 3,603.07 is: 5,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,152.80 : 13,732.49 = 3,603.07 : x
  2. Step 2: Convert to fraction form
    9,152.80/13,732.49 = 3,603.07/x
  3. Step 3: Cross multiply
    9,152.80x = 13,732.49 × 3,603.07
  4. Step 4: Simplify right side
    9,152.80x = 49,479,122.74
  5. Step 5: Solve for x
    x = 49,479,122.74/9,152.80
  6. Step 6: Final answer
    x = 5,405.90

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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.