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Finding the Fourth Proportional to 70,543.80, 97,353.24 and 38,713.84

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Solution

The fourth proportional to 70,543.80, 97,353.24 and 38,713.84 is: 53,426.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,543.80 : 97,353.24 = 38,713.84 : x
  2. Step 2: Convert to fraction form
    70,543.80/97,353.24 = 38,713.84/x
  3. Step 3: Cross multiply
    70,543.80x = 97,353.24 × 38,713.84
  4. Step 4: Simplify right side
    70,543.80x = 3,768,917,756.84
  5. Step 5: Solve for x
    x = 3,768,917,756.84/70,543.80
  6. Step 6: Final answer
    x = 53,426.63

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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.