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Finding the Fourth Proportional to 3,399.66, 5,073.66 and 3,312.18

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Solution

The fourth proportional to 3,399.66, 5,073.66 and 3,312.18 is: 4,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.66 : 5,073.66 = 3,312.18 : x
  2. Step 2: Convert to fraction form
    3,399.66/5,073.66 = 3,312.18/x
  3. Step 3: Cross multiply
    3,399.66x = 5,073.66 × 3,312.18
  4. Step 4: Simplify right side
    3,399.66x = 16,804,875.18
  5. Step 5: Solve for x
    x = 16,804,875.18/3,399.66
  6. Step 6: Final answer
    x = 4,943.10

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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.