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Finding the Fourth Proportional to 22,858.70, 34,287.80 and 17,345.90

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Solution

The fourth proportional to 22,858.70, 34,287.80 and 17,345.90 is: 26,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,858.70 : 34,287.80 = 17,345.90 : x
  2. Step 2: Convert to fraction form
    22,858.70/34,287.80 = 17,345.90/x
  3. Step 3: Cross multiply
    22,858.70x = 34,287.80 × 17,345.90
  4. Step 4: Simplify right side
    22,858.70x = 594,752,491.85
  5. Step 5: Solve for x
    x = 594,752,491.85/22,858.70
  6. Step 6: Final answer
    x = 26,018.65

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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.