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Finding the Fourth Proportional to 25,973.20, 38,959.80 and 21,593.80

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Solution

The fourth proportional to 25,973.20, 38,959.80 and 21,593.80 is: 32,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,973.20 : 38,959.80 = 21,593.80 : x
  2. Step 2: Convert to fraction form
    25,973.20/38,959.80 = 21,593.80/x
  3. Step 3: Cross multiply
    25,973.20x = 38,959.80 × 21,593.80
  4. Step 4: Simplify right side
    25,973.20x = 841,290,129.24
  5. Step 5: Solve for x
    x = 841,290,129.24/25,973.20
  6. Step 6: Final answer
    x = 32,390.70

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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.