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Finding the Fourth Proportional to 70,306.48, 105,501.24 and 25,964.24

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Solution

The fourth proportional to 70,306.48, 105,501.24 and 25,964.24 is: 38,961.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,306.48 : 105,501.24 = 25,964.24 : x
  2. Step 2: Convert to fraction form
    70,306.48/105,501.24 = 25,964.24/x
  3. Step 3: Cross multiply
    70,306.48x = 105,501.24 × 25,964.24
  4. Step 4: Simplify right side
    70,306.48x = 2,739,259,515.66
  5. Step 5: Solve for x
    x = 2,739,259,515.66/70,306.48
  6. Step 6: Final answer
    x = 38,961.69

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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.