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Finding the Fourth Proportional to 59,679.30, 89,518.95 and 28,069.71

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Solution

The fourth proportional to 59,679.30, 89,518.95 and 28,069.71 is: 42,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,679.30 : 89,518.95 = 28,069.71 : x
  2. Step 2: Convert to fraction form
    59,679.30/89,518.95 = 28,069.71/x
  3. Step 3: Cross multiply
    59,679.30x = 89,518.95 × 28,069.71
  4. Step 4: Simplify right side
    59,679.30x = 2,512,770,966.00
  5. Step 5: Solve for x
    x = 2,512,770,966.00/59,679.30
  6. Step 6: Final answer
    x = 42,104.57

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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.