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Finding the Fourth Proportional to 9,765.90, 13,476.24 and 5,787.27

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Solution

The fourth proportional to 9,765.90, 13,476.24 and 5,787.27 is: 7,986.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.90 : 13,476.24 = 5,787.27 : x
  2. Step 2: Convert to fraction form
    9,765.90/13,476.24 = 5,787.27/x
  3. Step 3: Cross multiply
    9,765.90x = 13,476.24 × 5,787.27
  4. Step 4: Simplify right side
    9,765.90x = 77,990,639.46
  5. Step 5: Solve for x
    x = 77,990,639.46/9,765.90
  6. Step 6: Final answer
    x = 7,986.02

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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.