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Finding the Fourth Proportional to 8,762.13, 12,091.86 and 4,783.14

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Solution

The fourth proportional to 8,762.13, 12,091.86 and 4,783.14 is: 6,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.13 : 12,091.86 = 4,783.14 : x
  2. Step 2: Convert to fraction form
    8,762.13/12,091.86 = 4,783.14/x
  3. Step 3: Cross multiply
    8,762.13x = 12,091.86 × 4,783.14
  4. Step 4: Simplify right side
    8,762.13x = 57,837,059.24
  5. Step 5: Solve for x
    x = 57,837,059.24/8,762.13
  6. Step 6: Final answer
    x = 6,600.80

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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.