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Finding the Fourth Proportional to 70,761.94, 97,652.99 and 38,930.93

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Solution

The fourth proportional to 70,761.94, 97,652.99 and 38,930.93 is: 53,725.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,761.94 : 97,652.99 = 38,930.93 : x
  2. Step 2: Convert to fraction form
    70,761.94/97,652.99 = 38,930.93/x
  3. Step 3: Cross multiply
    70,761.94x = 97,652.99 × 38,930.93
  4. Step 4: Simplify right side
    70,761.94x = 3,801,721,693.24
  5. Step 5: Solve for x
    x = 3,801,721,693.24/70,761.94
  6. Step 6: Final answer
    x = 53,725.52

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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.