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Finding the Fourth Proportional to 71,693.67, 107,518.65 and 19,096.32

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Solution

The fourth proportional to 71,693.67, 107,518.65 and 19,096.32 is: 28,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,693.67 : 107,518.65 = 19,096.32 : x
  2. Step 2: Convert to fraction form
    71,693.67/107,518.65 = 19,096.32/x
  3. Step 3: Cross multiply
    71,693.67x = 107,518.65 × 19,096.32
  4. Step 4: Simplify right side
    71,693.67x = 2,053,210,546.37
  5. Step 5: Solve for x
    x = 2,053,210,546.37/71,693.67
  6. Step 6: Final answer
    x = 28,638.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.