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Finding the Fourth Proportional to 25,304.40, 34,743.06 and 20,552.40

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Solution

The fourth proportional to 25,304.40, 34,743.06 and 20,552.40 is: 28,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,304.40 : 34,743.06 = 20,552.40 : x
  2. Step 2: Convert to fraction form
    25,304.40/34,743.06 = 20,552.40/x
  3. Step 3: Cross multiply
    25,304.40x = 34,743.06 × 20,552.40
  4. Step 4: Simplify right side
    25,304.40x = 714,053,266.34
  5. Step 5: Solve for x
    x = 714,053,266.34/25,304.40
  6. Step 6: Final answer
    x = 28,218.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.