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Finding the Fourth Proportional to 70,646.88, 97,449.42 and 41,947.05

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Solution

The fourth proportional to 70,646.88, 97,449.42 and 41,947.05 is: 57,861.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,646.88 : 97,449.42 = 41,947.05 : x
  2. Step 2: Convert to fraction form
    70,646.88/97,449.42 = 41,947.05/x
  3. Step 3: Cross multiply
    70,646.88x = 97,449.42 × 41,947.05
  4. Step 4: Simplify right side
    70,646.88x = 4,087,715,693.21
  5. Step 5: Solve for x
    x = 4,087,715,693.21/70,646.88
  6. Step 6: Final answer
    x = 57,861.23

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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.