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Finding the Fourth Proportional to 32,643.20, 45,047.20 and 17,739.20

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Solution

The fourth proportional to 32,643.20, 45,047.20 and 17,739.20 is: 24,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,643.20 : 45,047.20 = 17,739.20 : x
  2. Step 2: Convert to fraction form
    32,643.20/45,047.20 = 17,739.20/x
  3. Step 3: Cross multiply
    32,643.20x = 45,047.20 × 17,739.20
  4. Step 4: Simplify right side
    32,643.20x = 799,101,290.24
  5. Step 5: Solve for x
    x = 799,101,290.24/32,643.20
  6. Step 6: Final answer
    x = 24,479.87

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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.