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Finding the Fourth Proportional to 70,883.68, 97,819.58 and 38,618.14

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Solution

The fourth proportional to 70,883.68, 97,819.58 and 38,618.14 is: 53,293.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883.68 : 97,819.58 = 38,618.14 : x
  2. Step 2: Convert to fraction form
    70,883.68/97,819.58 = 38,618.14/x
  3. Step 3: Cross multiply
    70,883.68x = 97,819.58 × 38,618.14
  4. Step 4: Simplify right side
    70,883.68x = 3,777,610,235.18
  5. Step 5: Solve for x
    x = 3,777,610,235.18/70,883.68
  6. Step 6: Final answer
    x = 53,293.09

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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.