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Finding the Fourth Proportional to 22,248.48, 33,389.16 and 17,918.20

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Solution

The fourth proportional to 22,248.48, 33,389.16 and 17,918.20 is: 26,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,248.48 : 33,389.16 = 17,918.20 : x
  2. Step 2: Convert to fraction form
    22,248.48/33,389.16 = 17,918.20/x
  3. Step 3: Cross multiply
    22,248.48x = 33,389.16 × 17,918.20
  4. Step 4: Simplify right side
    22,248.48x = 598,273,646.71
  5. Step 5: Solve for x
    x = 598,273,646.71/22,248.48
  6. Step 6: Final answer
    x = 26,890.54

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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.