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Finding the Fourth Proportional to 32,420.43, 48,630.65 and 16,805.25

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Solution

The fourth proportional to 32,420.43, 48,630.65 and 16,805.25 is: 25,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,420.43 : 48,630.65 = 16,805.25 : x
  2. Step 2: Convert to fraction form
    32,420.43/48,630.65 = 16,805.25/x
  3. Step 3: Cross multiply
    32,420.43x = 48,630.65 × 16,805.25
  4. Step 4: Simplify right side
    32,420.43x = 817,250,146.89
  5. Step 5: Solve for x
    x = 817,250,146.89/32,420.43
  6. Step 6: Final answer
    x = 25,207.88

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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.