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Finding the Fourth Proportional to 8,819.88, 13,223.88 and 4,655.52

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Solution

The fourth proportional to 8,819.88, 13,223.88 and 4,655.52 is: 6,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.88 : 13,223.88 = 4,655.52 : x
  2. Step 2: Convert to fraction form
    8,819.88/13,223.88 = 4,655.52/x
  3. Step 3: Cross multiply
    8,819.88x = 13,223.88 × 4,655.52
  4. Step 4: Simplify right side
    8,819.88x = 61,564,037.82
  5. Step 5: Solve for x
    x = 61,564,037.82/8,819.88
  6. Step 6: Final answer
    x = 6,980.14

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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.