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Finding the Fourth Proportional to 8,795.74, 12,138.16 and 4,816.88

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Solution

The fourth proportional to 8,795.74, 12,138.16 and 4,816.88 is: 6,647.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.74 : 12,138.16 = 4,816.88 : x
  2. Step 2: Convert to fraction form
    8,795.74/12,138.16 = 4,816.88/x
  3. Step 3: Cross multiply
    8,795.74x = 12,138.16 × 4,816.88
  4. Step 4: Simplify right side
    8,795.74x = 58,468,060.14
  5. Step 5: Solve for x
    x = 58,468,060.14/8,795.74
  6. Step 6: Final answer
    x = 6,647.32

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1.5x scale

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.