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Finding the Fourth Proportional to 10,788.84, 14,888.88 and 6,072.84

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Solution

The fourth proportional to 10,788.84, 14,888.88 and 6,072.84 is: 8,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788.84 : 14,888.88 = 6,072.84 : x
  2. Step 2: Convert to fraction form
    10,788.84/14,888.88 = 6,072.84/x
  3. Step 3: Cross multiply
    10,788.84x = 14,888.88 × 6,072.84
  4. Step 4: Simplify right side
    10,788.84x = 90,417,786.02
  5. Step 5: Solve for x
    x = 90,417,786.02/10,788.84
  6. Step 6: Final answer
    x = 8,380.68

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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.