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Finding the Fourth Proportional to 70,193.90, 96,867.59 and 38,362.79

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Solution

The fourth proportional to 70,193.90, 96,867.59 and 38,362.79 is: 52,940.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,193.90 : 96,867.59 = 38,362.79 : x
  2. Step 2: Convert to fraction form
    70,193.90/96,867.59 = 38,362.79/x
  3. Step 3: Cross multiply
    70,193.90x = 96,867.59 × 38,362.79
  4. Step 4: Simplify right side
    70,193.90x = 3,716,111,012.98
  5. Step 5: Solve for x
    x = 3,716,111,012.98/70,193.90
  6. Step 6: Final answer
    x = 52,940.65

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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.