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Finding the Fourth Proportional to 70,843.53, 97,763.89 and 38,577.63

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Solution

The fourth proportional to 70,843.53, 97,763.89 and 38,577.63 is: 53,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,843.53 : 97,763.89 = 38,577.63 : x
  2. Step 2: Convert to fraction form
    70,843.53/97,763.89 = 38,577.63/x
  3. Step 3: Cross multiply
    70,843.53x = 97,763.89 × 38,577.63
  4. Step 4: Simplify right side
    70,843.53x = 3,771,499,175.78
  5. Step 5: Solve for x
    x = 3,771,499,175.78/70,843.53
  6. Step 6: Final answer
    x = 53,237.03

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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.