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Finding the Fourth Proportional to 8,750.63, 13,130.96 and 3,203.25

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Solution

The fourth proportional to 8,750.63, 13,130.96 and 3,203.25 is: 4,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.63 : 13,130.96 = 3,203.25 : x
  2. Step 2: Convert to fraction form
    8,750.63/13,130.96 = 3,203.25/x
  3. Step 3: Cross multiply
    8,750.63x = 13,130.96 × 3,203.25
  4. Step 4: Simplify right side
    8,750.63x = 42,061,700.38
  5. Step 5: Solve for x
    x = 42,061,700.38/8,750.63
  6. Step 6: Final answer
    x = 4,806.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.