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Finding the Fourth Proportional to 32,478.91, 48,720.12 and 9,107.17

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Solution

The fourth proportional to 32,478.91, 48,720.12 and 9,107.17 is: 13,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,478.91 : 48,720.12 = 9,107.17 : x
  2. Step 2: Convert to fraction form
    32,478.91/48,720.12 = 9,107.17/x
  3. Step 3: Cross multiply
    32,478.91x = 48,720.12 × 9,107.17
  4. Step 4: Simplify right side
    32,478.91x = 443,702,415.26
  5. Step 5: Solve for x
    x = 443,702,415.26/32,478.91
  6. Step 6: Final answer
    x = 13,661.25

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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.