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Finding the Fourth Proportional to 90,354.94, 135,539.06 and 23,794.61

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Solution

The fourth proportional to 90,354.94, 135,539.06 and 23,794.61 is: 35,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,354.94 : 135,539.06 = 23,794.61 : x
  2. Step 2: Convert to fraction form
    90,354.94/135,539.06 = 23,794.61/x
  3. Step 3: Cross multiply
    90,354.94x = 135,539.06 × 23,794.61
  4. Step 4: Simplify right side
    90,354.94x = 3,225,098,275.80
  5. Step 5: Solve for x
    x = 3,225,098,275.80/90,354.94
  6. Step 6: Final answer
    x = 35,693.66

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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.