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Finding the Fourth Proportional to 8,750.69, 12,075.68 and 4,771.88

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Solution

The fourth proportional to 8,750.69, 12,075.68 and 4,771.88 is: 6,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.69 : 12,075.68 = 4,771.88 : x
  2. Step 2: Convert to fraction form
    8,750.69/12,075.68 = 4,771.88/x
  3. Step 3: Cross multiply
    8,750.69x = 12,075.68 × 4,771.88
  4. Step 4: Simplify right side
    8,750.69x = 57,623,647.43
  5. Step 5: Solve for x
    x = 57,623,647.43/8,750.69
  6. Step 6: Final answer
    x = 6,585.04

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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.