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Finding the Fourth Proportional to 70,661.98, 97,512.33 and 38,830.84

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Solution

The fourth proportional to 70,661.98, 97,512.33 and 38,830.84 is: 53,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,661.98 : 97,512.33 = 38,830.84 : x
  2. Step 2: Convert to fraction form
    70,661.98/97,512.33 = 38,830.84/x
  3. Step 3: Cross multiply
    70,661.98x = 97,512.33 × 38,830.84
  4. Step 4: Simplify right side
    70,661.98x = 3,786,485,684.26
  5. Step 5: Solve for x
    x = 3,786,485,684.26/70,661.98
  6. Step 6: Final answer
    x = 53,585.90

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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.