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Finding the Fourth Proportional to 70,243.60, 96,938.04 and 41,965.60

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Solution

The fourth proportional to 70,243.60, 96,938.04 and 41,965.60 is: 57,913.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,243.60 : 96,938.04 = 41,965.60 : x
  2. Step 2: Convert to fraction form
    70,243.60/96,938.04 = 41,965.60/x
  3. Step 3: Cross multiply
    70,243.60x = 96,938.04 × 41,965.60
  4. Step 4: Simplify right side
    70,243.60x = 4,068,063,011.42
  5. Step 5: Solve for x
    x = 4,068,063,011.42/70,243.60
  6. Step 6: Final answer
    x = 57,913.65

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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.