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Finding the Fourth Proportional to 16,868,752.20, 25,303,128.30 and 10,491,460.20

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Solution

The fourth proportional to 16,868,752.20, 25,303,128.30 and 10,491,460.20 is: 15,737,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,868,752.20 : 25,303,128.30 = 10,491,460.20 : x
  2. Step 2: Convert to fraction form
    16,868,752.20/25,303,128.30 = 10,491,460.20/x
  3. Step 3: Cross multiply
    16,868,752.20x = 25,303,128.30 × 10,491,460.20
  4. Step 4: Simplify right side
    16,868,752.20x = 265,466,763,494,943.66
  5. Step 5: Solve for x
    x = 265,466,763,494,943.66/16,868,752.20
  6. Step 6: Final answer
    x = 15,737,190.30

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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.