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Finding the Fourth Proportional to 5,554.80, 8,373.78 and 5,188.14

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Solution

The fourth proportional to 5,554.80, 8,373.78 and 5,188.14 is: 7,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,554.80 : 8,373.78 = 5,188.14 : x
  2. Step 2: Convert to fraction form
    5,554.80/8,373.78 = 5,188.14/x
  3. Step 3: Cross multiply
    5,554.80x = 8,373.78 × 5,188.14
  4. Step 4: Simplify right side
    5,554.80x = 43,444,342.97
  5. Step 5: Solve for x
    x = 43,444,342.97/5,554.80
  6. Step 6: Final answer
    x = 7,821.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.