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Finding the Fourth Proportional to 70,197, 96,871.68 and 38,366.12

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Solution

The fourth proportional to 70,197, 96,871.68 and 38,366.12 is: 52,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,197 : 96,871.68 = 38,366.12 : x
  2. Step 2: Convert to fraction form
    70,197/96,871.68 = 38,366.12/x
  3. Step 3: Cross multiply
    70,197x = 96,871.68 × 38,366.12
  4. Step 4: Simplify right side
    70,197x = 3,716,590,015.12
  5. Step 5: Solve for x
    x = 3,716,590,015.12/70,197
  6. Step 6: Final answer
    x = 52,945.14

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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.