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Finding the Fourth Proportional to 70,607.75, 97,447.34 and 40,799.75

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Solution

The fourth proportional to 70,607.75, 97,447.34 and 40,799.75 is: 56,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,607.75 : 97,447.34 = 40,799.75 : x
  2. Step 2: Convert to fraction form
    70,607.75/97,447.34 = 40,799.75/x
  3. Step 3: Cross multiply
    70,607.75x = 97,447.34 × 40,799.75
  4. Step 4: Simplify right side
    70,607.75x = 3,975,826,906.17
  5. Step 5: Solve for x
    x = 3,975,826,906.17/70,607.75
  6. Step 6: Final answer
    x = 56,308.65

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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.