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Finding the Fourth Proportional to 45,816.80, 68,725.20 and 22,488.80

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Solution

The fourth proportional to 45,816.80, 68,725.20 and 22,488.80 is: 33,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,816.80 : 68,725.20 = 22,488.80 : x
  2. Step 2: Convert to fraction form
    45,816.80/68,725.20 = 22,488.80/x
  3. Step 3: Cross multiply
    45,816.80x = 68,725.20 × 22,488.80
  4. Step 4: Simplify right side
    45,816.80x = 1,545,547,277.76
  5. Step 5: Solve for x
    x = 1,545,547,277.76/45,816.80
  6. Step 6: Final answer
    x = 33,733.20

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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.