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Finding the Fourth Proportional to 70,294.34, 105,442.73 and 25,898.24

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Solution

The fourth proportional to 70,294.34, 105,442.73 and 25,898.24 is: 38,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,294.34 : 105,442.73 = 25,898.24 : x
  2. Step 2: Convert to fraction form
    70,294.34/105,442.73 = 25,898.24/x
  3. Step 3: Cross multiply
    70,294.34x = 105,442.73 × 25,898.24
  4. Step 4: Simplify right side
    70,294.34x = 2,730,780,471.09
  5. Step 5: Solve for x
    x = 2,730,780,471.09/70,294.34
  6. Step 6: Final answer
    x = 38,847.80

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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.