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Finding the Fourth Proportional to 4,724.76, 7,087.14 and 2,124.66

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Solution

The fourth proportional to 4,724.76, 7,087.14 and 2,124.66 is: 3,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.76 : 7,087.14 = 2,124.66 : x
  2. Step 2: Convert to fraction form
    4,724.76/7,087.14 = 2,124.66/x
  3. Step 3: Cross multiply
    4,724.76x = 7,087.14 × 2,124.66
  4. Step 4: Simplify right side
    4,724.76x = 15,057,762.87
  5. Step 5: Solve for x
    x = 15,057,762.87/4,724.76
  6. Step 6: Final answer
    x = 3,186.99

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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.