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Finding the Fourth Proportional to 32,959.28, 45,504.80 and 21,648.88

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Solution

The fourth proportional to 32,959.28, 45,504.80 and 21,648.88 is: 29,889.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,959.28 : 45,504.80 = 21,648.88 : x
  2. Step 2: Convert to fraction form
    32,959.28/45,504.80 = 21,648.88/x
  3. Step 3: Cross multiply
    32,959.28x = 45,504.80 × 21,648.88
  4. Step 4: Simplify right side
    32,959.28x = 985,127,954.62
  5. Step 5: Solve for x
    x = 985,127,954.62/32,959.28
  6. Step 6: Final answer
    x = 29,889.24

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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.