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Finding the Fourth Proportional to 4,888.18, 7,321.32 and 4,724.14

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Solution

The fourth proportional to 4,888.18, 7,321.32 and 4,724.14 is: 7,075.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.18 : 7,321.32 = 4,724.14 : x
  2. Step 2: Convert to fraction form
    4,888.18/7,321.32 = 4,724.14/x
  3. Step 3: Cross multiply
    4,888.18x = 7,321.32 × 4,724.14
  4. Step 4: Simplify right side
    4,888.18x = 34,586,940.66
  5. Step 5: Solve for x
    x = 34,586,940.66/4,888.18
  6. Step 6: Final answer
    x = 7,075.63

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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.