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Finding the Fourth Proportional to 8,816.16, 12,164.40 and 5,088

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Solution

The fourth proportional to 8,816.16, 12,164.40 and 5,088 is: 7,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.16 : 12,164.40 = 5,088 : x
  2. Step 2: Convert to fraction form
    8,816.16/12,164.40 = 5,088/x
  3. Step 3: Cross multiply
    8,816.16x = 12,164.40 × 5,088
  4. Step 4: Simplify right side
    8,816.16x = 61,892,467.20
  5. Step 5: Solve for x
    x = 61,892,467.20/8,816.16
  6. Step 6: Final answer
    x = 7,020.34

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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.