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Finding the Fourth Proportional to 70,930.58, 97,883.55 and 38,665.19

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Solution

The fourth proportional to 70,930.58, 97,883.55 and 38,665.19 is: 53,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,930.58 : 97,883.55 = 38,665.19 : x
  2. Step 2: Convert to fraction form
    70,930.58/97,883.55 = 38,665.19/x
  3. Step 3: Cross multiply
    70,930.58x = 97,883.55 × 38,665.19
  4. Step 4: Simplify right side
    70,930.58x = 3,784,686,058.62
  5. Step 5: Solve for x
    x = 3,784,686,058.62/70,930.58
  6. Step 6: Final answer
    x = 53,357.61

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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.