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Finding the Fourth Proportional to 9,077.78, 12,501.27 and 8,173.82

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Solution

The fourth proportional to 9,077.78, 12,501.27 and 8,173.82 is: 11,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,077.78 : 12,501.27 = 8,173.82 : x
  2. Step 2: Convert to fraction form
    9,077.78/12,501.27 = 8,173.82/x
  3. Step 3: Cross multiply
    9,077.78x = 12,501.27 × 8,173.82
  4. Step 4: Simplify right side
    9,077.78x = 102,183,162.00
  5. Step 5: Solve for x
    x = 102,183,162.00/9,077.78
  6. Step 6: Final answer
    x = 11,256.40

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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.