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Finding the Fourth Proportional to 70,202.52, 105,292.44 and 25,818.30

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Solution

The fourth proportional to 70,202.52, 105,292.44 and 25,818.30 is: 38,723.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,202.52 : 105,292.44 = 25,818.30 : x
  2. Step 2: Convert to fraction form
    70,202.52/105,292.44 = 25,818.30/x
  3. Step 3: Cross multiply
    70,202.52x = 105,292.44 × 25,818.30
  4. Step 4: Simplify right side
    70,202.52x = 2,718,471,803.65
  5. Step 5: Solve for x
    x = 2,718,471,803.65/70,202.52
  6. Step 6: Final answer
    x = 38,723.28

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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.