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Finding the Fourth Proportional to 70,594.38, 97,420.56 and 40,380.03

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Solution

The fourth proportional to 70,594.38, 97,420.56 and 40,380.03 is: 55,724.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,594.38 : 97,420.56 = 40,380.03 : x
  2. Step 2: Convert to fraction form
    70,594.38/97,420.56 = 40,380.03/x
  3. Step 3: Cross multiply
    70,594.38x = 97,420.56 × 40,380.03
  4. Step 4: Simplify right side
    70,594.38x = 3,933,845,135.42
  5. Step 5: Solve for x
    x = 3,933,845,135.42/70,594.38
  6. Step 6: Final answer
    x = 55,724.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.