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Finding the Fourth Proportional to 16,658.74, 22,989.34 and 9,943.06

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Solution

The fourth proportional to 16,658.74, 22,989.34 and 9,943.06 is: 13,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.74 : 22,989.34 = 9,943.06 : x
  2. Step 2: Convert to fraction form
    16,658.74/22,989.34 = 9,943.06/x
  3. Step 3: Cross multiply
    16,658.74x = 22,989.34 × 9,943.06
  4. Step 4: Simplify right side
    16,658.74x = 228,584,386.98
  5. Step 5: Solve for x
    x = 228,584,386.98/16,658.74
  6. Step 6: Final answer
    x = 13,721.59

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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.