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Finding the Fourth Proportional to 75,632.66, 113,449.64 and 21,597.20

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Solution

The fourth proportional to 75,632.66, 113,449.64 and 21,597.20 is: 32,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,632.66 : 113,449.64 = 21,597.20 : x
  2. Step 2: Convert to fraction form
    75,632.66/113,449.64 = 21,597.20/x
  3. Step 3: Cross multiply
    75,632.66x = 113,449.64 × 21,597.20
  4. Step 4: Simplify right side
    75,632.66x = 2,450,195,014.11
  5. Step 5: Solve for x
    x = 2,450,195,014.11/75,632.66
  6. Step 6: Final answer
    x = 32,395.99

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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.