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Finding the Fourth Proportional to 22,673.30, 31,297.87 and 15,116.87

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Solution

The fourth proportional to 22,673.30, 31,297.87 and 15,116.87 is: 20,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,673.30 : 31,297.87 = 15,116.87 : x
  2. Step 2: Convert to fraction form
    22,673.30/31,297.87 = 15,116.87/x
  3. Step 3: Cross multiply
    22,673.30x = 31,297.87 × 15,116.87
  4. Step 4: Simplify right side
    22,673.30x = 473,125,929.21
  5. Step 5: Solve for x
    x = 473,125,929.21/22,673.30
  6. Step 6: Final answer
    x = 20,867.10

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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.