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Finding the Fourth Proportional to 22,859.40, 34,308.42 and 9,018.12

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Solution

The fourth proportional to 22,859.40, 34,308.42 and 9,018.12 is: 13,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,859.40 : 34,308.42 = 9,018.12 : x
  2. Step 2: Convert to fraction form
    22,859.40/34,308.42 = 9,018.12/x
  3. Step 3: Cross multiply
    22,859.40x = 34,308.42 × 9,018.12
  4. Step 4: Simplify right side
    22,859.40x = 309,397,448.57
  5. Step 5: Solve for x
    x = 309,397,448.57/22,859.40
  6. Step 6: Final answer
    x = 13,534.80

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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.