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Finding the Fourth Proportional to 22,298,506.80, 33,472,643.40 and 20,836,618.80

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Solution

The fourth proportional to 22,298,506.80, 33,472,643.40 and 20,836,618.80 is: 31,278,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,298,506.80 : 33,472,643.40 = 20,836,618.80 : x
  2. Step 2: Convert to fraction form
    22,298,506.80/33,472,643.40 = 20,836,618.80/x
  3. Step 3: Cross multiply
    22,298,506.80x = 33,472,643.40 × 20,836,618.80
  4. Step 4: Simplify right side
    22,298,506.80x = 697,456,710,754,135.88
  5. Step 5: Solve for x
    x = 697,456,710,754,135.88/22,298,506.80
  6. Step 6: Final answer
    x = 31,278,180.06

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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.