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Finding the Fourth Proportional to 16,689.13, 23,031.06 and 9,237.13

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Solution

The fourth proportional to 16,689.13, 23,031.06 and 9,237.13 is: 12,747.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.13 : 23,031.06 = 9,237.13 : x
  2. Step 2: Convert to fraction form
    16,689.13/23,031.06 = 9,237.13/x
  3. Step 3: Cross multiply
    16,689.13x = 23,031.06 × 9,237.13
  4. Step 4: Simplify right side
    16,689.13x = 212,740,895.26
  5. Step 5: Solve for x
    x = 212,740,895.26/16,689.13
  6. Step 6: Final answer
    x = 12,747.27

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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.