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Finding the Fourth Proportional to 7,885.84, 11,805.88 and 4,588.88

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Solution

The fourth proportional to 7,885.84, 11,805.88 and 4,588.88 is: 6,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.84 : 11,805.88 = 4,588.88 : x
  2. Step 2: Convert to fraction form
    7,885.84/11,805.88 = 4,588.88/x
  3. Step 3: Cross multiply
    7,885.84x = 11,805.88 × 4,588.88
  4. Step 4: Simplify right side
    7,885.84x = 54,175,766.61
  5. Step 5: Solve for x
    x = 54,175,766.61/7,885.84
  6. Step 6: Final answer
    x = 6,870.01

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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.