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Finding the Fourth Proportional to 8,974.77, 12,384.84 and 4,995.81

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Solution

The fourth proportional to 8,974.77, 12,384.84 and 4,995.81 is: 6,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.77 : 12,384.84 = 4,995.81 : x
  2. Step 2: Convert to fraction form
    8,974.77/12,384.84 = 4,995.81/x
  3. Step 3: Cross multiply
    8,974.77x = 12,384.84 × 4,995.81
  4. Step 4: Simplify right side
    8,974.77x = 61,872,307.52
  5. Step 5: Solve for x
    x = 61,872,307.52/8,974.77
  6. Step 6: Final answer
    x = 6,894.03

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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.