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Finding the Fourth Proportional to 4,990.66, 7,448.04 and 4,437.08

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Solution

The fourth proportional to 4,990.66, 7,448.04 and 4,437.08 is: 6,621.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.66 : 7,448.04 = 4,437.08 : x
  2. Step 2: Convert to fraction form
    4,990.66/7,448.04 = 4,437.08/x
  3. Step 3: Cross multiply
    4,990.66x = 7,448.04 × 4,437.08
  4. Step 4: Simplify right side
    4,990.66x = 33,047,540.01
  5. Step 5: Solve for x
    x = 33,047,540.01/4,990.66
  6. Step 6: Final answer
    x = 6,621.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.