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Finding the Fourth Proportional to 10,929.81, 16,411.12 and 6,255.10

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Solution

The fourth proportional to 10,929.81, 16,411.12 and 6,255.10 is: 9,392.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.81 : 16,411.12 = 6,255.10 : x
  2. Step 2: Convert to fraction form
    10,929.81/16,411.12 = 6,255.10/x
  3. Step 3: Cross multiply
    10,929.81x = 16,411.12 × 6,255.10
  4. Step 4: Simplify right side
    10,929.81x = 102,653,165.44
  5. Step 5: Solve for x
    x = 102,653,165.44/10,929.81
  6. Step 6: Final answer
    x = 9,392.04

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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.