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Finding the Fourth Proportional to 23,319.20, 34,978.80 and 16,806.80

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Solution

The fourth proportional to 23,319.20, 34,978.80 and 16,806.80 is: 25,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,319.20 : 34,978.80 = 16,806.80 : x
  2. Step 2: Convert to fraction form
    23,319.20/34,978.80 = 16,806.80/x
  3. Step 3: Cross multiply
    23,319.20x = 34,978.80 × 16,806.80
  4. Step 4: Simplify right side
    23,319.20x = 587,881,695.84
  5. Step 5: Solve for x
    x = 587,881,695.84/23,319.20
  6. Step 6: Final answer
    x = 25,210.20

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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.