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Finding the Fourth Proportional to 28,033,606.80, 41,966,429.40 and 16,668,205.20

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Solution

The fourth proportional to 28,033,606.80, 41,966,429.40 and 16,668,205.20 is: 24,952,374.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033,606.80 : 41,966,429.40 = 16,668,205.20 : x
  2. Step 2: Convert to fraction form
    28,033,606.80/41,966,429.40 = 16,668,205.20/x
  3. Step 3: Cross multiply
    28,033,606.80x = 41,966,429.40 × 16,668,205.20
  4. Step 4: Simplify right side
    28,033,606.80x = 699,505,056,750,512.88
  5. Step 5: Solve for x
    x = 699,505,056,750,512.88/28,033,606.80
  6. Step 6: Final answer
    x = 24,952,374.55

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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.