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Finding the Fourth Proportional to 32,348.80, 48,458.40 and 21,851.20

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Solution

The fourth proportional to 32,348.80, 48,458.40 and 21,851.20 is: 32,733.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,348.80 : 48,458.40 = 21,851.20 : x
  2. Step 2: Convert to fraction form
    32,348.80/48,458.40 = 21,851.20/x
  3. Step 3: Cross multiply
    32,348.80x = 48,458.40 × 21,851.20
  4. Step 4: Simplify right side
    32,348.80x = 1,058,874,190.08
  5. Step 5: Solve for x
    x = 1,058,874,190.08/32,348.80
  6. Step 6: Final answer
    x = 32,733.03

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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.