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Finding the Fourth Proportional to 10,778.78, 14,875.21 and 6,063.07

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Solution

The fourth proportional to 10,778.78, 14,875.21 and 6,063.07 is: 8,367.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.78 : 14,875.21 = 6,063.07 : x
  2. Step 2: Convert to fraction form
    10,778.78/14,875.21 = 6,063.07/x
  3. Step 3: Cross multiply
    10,778.78x = 14,875.21 × 6,063.07
  4. Step 4: Simplify right side
    10,778.78x = 90,189,387.15
  5. Step 5: Solve for x
    x = 90,189,387.15/10,778.78
  6. Step 6: Final answer
    x = 8,367.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.