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Finding the Fourth Proportional to 70,074.72, 96,702.12 and 38,243.88

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Solution

The fourth proportional to 70,074.72, 96,702.12 and 38,243.88 is: 52,776.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,074.72 : 96,702.12 = 38,243.88 : x
  2. Step 2: Convert to fraction form
    70,074.72/96,702.12 = 38,243.88/x
  3. Step 3: Cross multiply
    70,074.72x = 96,702.12 × 38,243.88
  4. Step 4: Simplify right side
    70,074.72x = 3,698,264,273.03
  5. Step 5: Solve for x
    x = 3,698,264,273.03/70,074.72
  6. Step 6: Final answer
    x = 52,776.01

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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.