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Finding the Fourth Proportional to 8,914.90, 12,304.02 and 5,329.93

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Solution

The fourth proportional to 8,914.90, 12,304.02 and 5,329.93 is: 7,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.90 : 12,304.02 = 5,329.93 : x
  2. Step 2: Convert to fraction form
    8,914.90/12,304.02 = 5,329.93/x
  3. Step 3: Cross multiply
    8,914.90x = 12,304.02 × 5,329.93
  4. Step 4: Simplify right side
    8,914.90x = 65,579,565.32
  5. Step 5: Solve for x
    x = 65,579,565.32/8,914.90
  6. Step 6: Final answer
    x = 7,356.18

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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.