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Finding the Fourth Proportional to 6,787.35, 9,365.09 and 5,729.09

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Solution

The fourth proportional to 6,787.35, 9,365.09 and 5,729.09 is: 7,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.35 : 9,365.09 = 5,729.09 : x
  2. Step 2: Convert to fraction form
    6,787.35/9,365.09 = 5,729.09/x
  3. Step 3: Cross multiply
    6,787.35x = 9,365.09 × 5,729.09
  4. Step 4: Simplify right side
    6,787.35x = 53,653,368.00
  5. Step 5: Solve for x
    x = 53,653,368.00/6,787.35
  6. Step 6: Final answer
    x = 7,904.91

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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.