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Finding the Fourth Proportional to 32,520.61, 48,780.92 and 9,147.05

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Solution

The fourth proportional to 32,520.61, 48,780.92 and 9,147.05 is: 13,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,520.61 : 48,780.92 = 9,147.05 : x
  2. Step 2: Convert to fraction form
    32,520.61/48,780.92 = 9,147.05/x
  3. Step 3: Cross multiply
    32,520.61x = 48,780.92 × 9,147.05
  4. Step 4: Simplify right side
    32,520.61x = 446,201,224.65
  5. Step 5: Solve for x
    x = 446,201,224.65/32,520.61
  6. Step 6: Final answer
    x = 13,720.57

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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.