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Finding the Fourth Proportional to 35,813,478.80, 53,776,205.40 and 20,696,934.80

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Solution

The fourth proportional to 35,813,478.80, 53,776,205.40 and 20,696,934.80 is: 31,077,757.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,813,478.80 : 53,776,205.40 = 20,696,934.80 : x
  2. Step 2: Convert to fraction form
    35,813,478.80/53,776,205.40 = 20,696,934.80/x
  3. Step 3: Cross multiply
    35,813,478.80x = 53,776,205.40 × 20,696,934.80
  4. Step 4: Simplify right side
    35,813,478.80x = 1,113,002,616,955,207.88
  5. Step 5: Solve for x
    x = 1,113,002,616,955,207.88/35,813,478.80
  6. Step 6: Final answer
    x = 31,077,757.71

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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.