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Finding the Fourth Proportional to 70,000.14, 96,602.45 and 39,378.54

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Solution

The fourth proportional to 70,000.14, 96,602.45 and 39,378.54 is: 54,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,000.14 : 96,602.45 = 39,378.54 : x
  2. Step 2: Convert to fraction form
    70,000.14/96,602.45 = 39,378.54/x
  3. Step 3: Cross multiply
    70,000.14x = 96,602.45 × 39,378.54
  4. Step 4: Simplify right side
    70,000.14x = 3,804,062,882.27
  5. Step 5: Solve for x
    x = 3,804,062,882.27/70,000.14
  6. Step 6: Final answer
    x = 54,343.65

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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.