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Finding the Fourth Proportional to 9,125.65, 13,704.27 and 8,710.12

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Solution

The fourth proportional to 9,125.65, 13,704.27 and 8,710.12 is: 13,080.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.65 : 13,704.27 = 8,710.12 : x
  2. Step 2: Convert to fraction form
    9,125.65/13,704.27 = 8,710.12/x
  3. Step 3: Cross multiply
    9,125.65x = 13,704.27 × 8,710.12
  4. Step 4: Simplify right side
    9,125.65x = 119,365,836.21
  5. Step 5: Solve for x
    x = 119,365,836.21/9,125.65
  6. Step 6: Final answer
    x = 13,080.26

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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.