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Finding the Fourth Proportional to 8,762.15, 12,091.52 and 8,056.84

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Solution

The fourth proportional to 8,762.15, 12,091.52 and 8,056.84 is: 11,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.15 : 12,091.52 = 8,056.84 : x
  2. Step 2: Convert to fraction form
    8,762.15/12,091.52 = 8,056.84/x
  3. Step 3: Cross multiply
    8,762.15x = 12,091.52 × 8,056.84
  4. Step 4: Simplify right side
    8,762.15x = 97,419,442.00
  5. Step 5: Solve for x
    x = 97,419,442.00/8,762.15
  6. Step 6: Final answer
    x = 11,118.21

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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.