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Finding the Fourth Proportional to 16,641,872.20, 24,962,808.30 and 7,683,920.20

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Solution

The fourth proportional to 16,641,872.20, 24,962,808.30 and 7,683,920.20 is: 11,525,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,641,872.20 : 24,962,808.30 = 7,683,920.20 : x
  2. Step 2: Convert to fraction form
    16,641,872.20/24,962,808.30 = 7,683,920.20/x
  3. Step 3: Cross multiply
    16,641,872.20x = 24,962,808.30 × 7,683,920.20
  4. Step 4: Simplify right side
    16,641,872.20x = 191,812,226,945,097.66
  5. Step 5: Solve for x
    x = 191,812,226,945,097.66/16,641,872.20
  6. Step 6: Final answer
    x = 11,525,880.30

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Double scale
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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.