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Finding the Fourth Proportional to 70,222.68, 96,907.62 and 38,391.58

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Solution

The fourth proportional to 70,222.68, 96,907.62 and 38,391.58 is: 52,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,222.68 : 96,907.62 = 38,391.58 : x
  2. Step 2: Convert to fraction form
    70,222.68/96,907.62 = 38,391.58/x
  3. Step 3: Cross multiply
    70,222.68x = 96,907.62 × 38,391.58
  4. Step 4: Simplify right side
    70,222.68x = 3,720,436,645.84
  5. Step 5: Solve for x
    x = 3,720,436,645.84/70,222.68
  6. Step 6: Final answer
    x = 52,980.56

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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.