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Finding the Fourth Proportional to 16,661.20, 24,988.20 and 7,301.20

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Solution

The fourth proportional to 16,661.20, 24,988.20 and 7,301.20 is: 10,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.20 : 24,988.20 = 7,301.20 : x
  2. Step 2: Convert to fraction form
    16,661.20/24,988.20 = 7,301.20/x
  3. Step 3: Cross multiply
    16,661.20x = 24,988.20 × 7,301.20
  4. Step 4: Simplify right side
    16,661.20x = 182,443,845.84
  5. Step 5: Solve for x
    x = 182,443,845.84/16,661.20
  6. Step 6: Final answer
    x = 10,950.22

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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.