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Finding the Fourth Proportional to 16,640,708.40, 24,961,062.60 and 12,070,315.80

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Solution

The fourth proportional to 16,640,708.40, 24,961,062.60 and 12,070,315.80 is: 18,105,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640,708.40 : 24,961,062.60 = 12,070,315.80 : x
  2. Step 2: Convert to fraction form
    16,640,708.40/24,961,062.60 = 12,070,315.80/x
  3. Step 3: Cross multiply
    16,640,708.40x = 24,961,062.60 × 12,070,315.80
  4. Step 4: Simplify right side
    16,640,708.40x = 301,287,908,285,569.12
  5. Step 5: Solve for x
    x = 301,287,908,285,569.12/16,640,708.40
  6. Step 6: Final answer
    x = 18,105,473.70

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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.