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Finding the Fourth Proportional to 69,820.63, 96,354.88 and 37,990.73

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Solution

The fourth proportional to 69,820.63, 96,354.88 and 37,990.73 is: 52,428.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,820.63 : 96,354.88 = 37,990.73 : x
  2. Step 2: Convert to fraction form
    69,820.63/96,354.88 = 37,990.73/x
  3. Step 3: Cross multiply
    69,820.63x = 96,354.88 × 37,990.73
  4. Step 4: Simplify right side
    69,820.63x = 3,660,592,376.17
  5. Step 5: Solve for x
    x = 3,660,592,376.17/69,820.63
  6. Step 6: Final answer
    x = 52,428.52

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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.