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Finding the Fourth Proportional to 32,812.16, 45,275.90 and 18,469.89

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Solution

The fourth proportional to 32,812.16, 45,275.90 and 18,469.89 is: 25,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,812.16 : 45,275.90 = 18,469.89 : x
  2. Step 2: Convert to fraction form
    32,812.16/45,275.90 = 18,469.89/x
  3. Step 3: Cross multiply
    32,812.16x = 45,275.90 × 18,469.89
  4. Step 4: Simplify right side
    32,812.16x = 836,240,800.30
  5. Step 5: Solve for x
    x = 836,240,800.30/32,812.16
  6. Step 6: Final answer
    x = 25,485.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.