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Finding the Fourth Proportional to 70,096.68, 96,735.60 and 39,886.38

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Solution

The fourth proportional to 70,096.68, 96,735.60 and 39,886.38 is: 55,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,096.68 : 96,735.60 = 39,886.38 : x
  2. Step 2: Convert to fraction form
    70,096.68/96,735.60 = 39,886.38/x
  3. Step 3: Cross multiply
    70,096.68x = 96,735.60 × 39,886.38
  4. Step 4: Simplify right side
    70,096.68x = 3,858,432,901.13
  5. Step 5: Solve for x
    x = 3,858,432,901.13/70,096.68
  6. Step 6: Final answer
    x = 55,044.45

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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.