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Finding the Fourth Proportional to 22,688.40, 33,965.40 and 16,870.80

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Solution

The fourth proportional to 22,688.40, 33,965.40 and 16,870.80 is: 25,256.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,688.40 : 33,965.40 = 16,870.80 : x
  2. Step 2: Convert to fraction form
    22,688.40/33,965.40 = 16,870.80/x
  3. Step 3: Cross multiply
    22,688.40x = 33,965.40 × 16,870.80
  4. Step 4: Simplify right side
    22,688.40x = 573,023,470.32
  5. Step 5: Solve for x
    x = 573,023,470.32/22,688.40
  6. Step 6: Final answer
    x = 25,256.23

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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.