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Finding the Fourth Proportional to 8,760.54, 12,087.90 and 5,224.08

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Solution

The fourth proportional to 8,760.54, 12,087.90 and 5,224.08 is: 7,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.54 : 12,087.90 = 5,224.08 : x
  2. Step 2: Convert to fraction form
    8,760.54/12,087.90 = 5,224.08/x
  3. Step 3: Cross multiply
    8,760.54x = 12,087.90 × 5,224.08
  4. Step 4: Simplify right side
    8,760.54x = 63,148,156.63
  5. Step 5: Solve for x
    x = 63,148,156.63/8,760.54
  6. Step 6: Final answer
    x = 7,208.25

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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.