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Finding the Fourth Proportional to 6,607.74, 9,904.82 and 2,909.28

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Solution

The fourth proportional to 6,607.74, 9,904.82 and 2,909.28 is: 4,360.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.74 : 9,904.82 = 2,909.28 : x
  2. Step 2: Convert to fraction form
    6,607.74/9,904.82 = 2,909.28/x
  3. Step 3: Cross multiply
    6,607.74x = 9,904.82 × 2,909.28
  4. Step 4: Simplify right side
    6,607.74x = 28,815,880.18
  5. Step 5: Solve for x
    x = 28,815,880.18/6,607.74
  6. Step 6: Final answer
    x = 4,360.93

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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.