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Finding the Fourth Proportional to 4,927.98, 7,392.21 and 4,724.46

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Solution

The fourth proportional to 4,927.98, 7,392.21 and 4,724.46 is: 7,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.98 : 7,392.21 = 4,724.46 : x
  2. Step 2: Convert to fraction form
    4,927.98/7,392.21 = 4,724.46/x
  3. Step 3: Cross multiply
    4,927.98x = 7,392.21 × 4,724.46
  4. Step 4: Simplify right side
    4,927.98x = 34,924,200.46
  5. Step 5: Solve for x
    x = 34,924,200.46/4,927.98
  6. Step 6: Final answer
    x = 7,086.92

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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.