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Finding the Fourth Proportional to 9,787.88, 14,681.80 and 4,860.97

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Solution

The fourth proportional to 9,787.88, 14,681.80 and 4,860.97 is: 7,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,787.88 : 14,681.80 = 4,860.97 : x
  2. Step 2: Convert to fraction form
    9,787.88/14,681.80 = 4,860.97/x
  3. Step 3: Cross multiply
    9,787.88x = 14,681.80 × 4,860.97
  4. Step 4: Simplify right side
    9,787.88x = 71,367,789.35
  5. Step 5: Solve for x
    x = 71,367,789.35/9,787.88
  6. Step 6: Final answer
    x = 7,291.45

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1.5x scale

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.