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Finding the Fourth Proportional to 9,987.91, 14,991.06 and 5,060.98

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Solution

The fourth proportional to 9,987.91, 14,991.06 and 5,060.98 is: 7,596.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.91 : 14,991.06 = 5,060.98 : x
  2. Step 2: Convert to fraction form
    9,987.91/14,991.06 = 5,060.98/x
  3. Step 3: Cross multiply
    9,987.91x = 14,991.06 × 5,060.98
  4. Step 4: Simplify right side
    9,987.91x = 75,869,454.84
  5. Step 5: Solve for x
    x = 75,869,454.84/9,987.91
  6. Step 6: Final answer
    x = 7,596.13

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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.