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Finding the Fourth Proportional to 9,923.84, 14,885.88 and 4,079.12

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Solution

The fourth proportional to 9,923.84, 14,885.88 and 4,079.12 is: 6,118.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,923.84 : 14,885.88 = 4,079.12 : x
  2. Step 2: Convert to fraction form
    9,923.84/14,885.88 = 4,079.12/x
  3. Step 3: Cross multiply
    9,923.84x = 14,885.88 × 4,079.12
  4. Step 4: Simplify right side
    9,923.84x = 60,721,290.83
  5. Step 5: Solve for x
    x = 60,721,290.83/9,923.84
  6. Step 6: Final answer
    x = 6,118.73

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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.