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Finding the Fourth Proportional to 70,755.94, 97,645.62 and 38,926.18

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Solution

The fourth proportional to 70,755.94, 97,645.62 and 38,926.18 is: 53,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,755.94 : 97,645.62 = 38,926.18 : x
  2. Step 2: Convert to fraction form
    70,755.94/97,645.62 = 38,926.18/x
  3. Step 3: Cross multiply
    70,755.94x = 97,645.62 × 38,926.18
  4. Step 4: Simplify right side
    70,755.94x = 3,800,970,980.33
  5. Step 5: Solve for x
    x = 3,800,970,980.33/70,755.94
  6. Step 6: Final answer
    x = 53,719.46

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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.