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Finding the Fourth Proportional to 70,755.26, 97,641.54 and 38,924.21

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Solution

The fourth proportional to 70,755.26, 97,641.54 and 38,924.21 is: 53,715.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,755.26 : 97,641.54 = 38,924.21 : x
  2. Step 2: Convert to fraction form
    70,755.26/97,641.54 = 38,924.21/x
  3. Step 3: Cross multiply
    70,755.26x = 97,641.54 × 38,924.21
  4. Step 4: Simplify right side
    70,755.26x = 3,800,619,807.68
  5. Step 5: Solve for x
    x = 3,800,619,807.68/70,755.26
  6. Step 6: Final answer
    x = 53,715.01

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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.