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Finding the Fourth Proportional to 25,798.80, 38,611.80 and 22,688.40

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Solution

The fourth proportional to 25,798.80, 38,611.80 and 22,688.40 is: 33,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,798.80 : 38,611.80 = 22,688.40 : x
  2. Step 2: Convert to fraction form
    25,798.80/38,611.80 = 22,688.40/x
  3. Step 3: Cross multiply
    25,798.80x = 38,611.80 × 22,688.40
  4. Step 4: Simplify right side
    25,798.80x = 876,039,963.12
  5. Step 5: Solve for x
    x = 876,039,963.12/25,798.80
  6. Step 6: Final answer
    x = 33,956.62

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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.