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Finding the Fourth Proportional to 2,223.79, 3,335.70 and 925.26

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Solution

The fourth proportional to 2,223.79, 3,335.70 and 925.26 is: 1,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.79 : 3,335.70 = 925.26 : x
  2. Step 2: Convert to fraction form
    2,223.79/3,335.70 = 925.26/x
  3. Step 3: Cross multiply
    2,223.79x = 3,335.70 × 925.26
  4. Step 4: Simplify right side
    2,223.79x = 3,086,389.78
  5. Step 5: Solve for x
    x = 3,086,389.78/2,223.79
  6. Step 6: Final answer
    x = 1,387.90

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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.