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Finding the Fourth Proportional to 8,752.63, 13,129.13 and 4,881.67

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Solution

The fourth proportional to 8,752.63, 13,129.13 and 4,881.67 is: 7,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.63 : 13,129.13 = 4,881.67 : x
  2. Step 2: Convert to fraction form
    8,752.63/13,129.13 = 4,881.67/x
  3. Step 3: Cross multiply
    8,752.63x = 13,129.13 × 4,881.67
  4. Step 4: Simplify right side
    8,752.63x = 64,092,055.64
  5. Step 5: Solve for x
    x = 64,092,055.64/8,752.63
  6. Step 6: Final answer
    x = 7,322.61

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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.