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Finding the Fourth Proportional to 5,309.94, 7,328.13 and 2,952.66

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Solution

The fourth proportional to 5,309.94, 7,328.13 and 2,952.66 is: 4,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.94 : 7,328.13 = 2,952.66 : x
  2. Step 2: Convert to fraction form
    5,309.94/7,328.13 = 2,952.66/x
  3. Step 3: Cross multiply
    5,309.94x = 7,328.13 × 2,952.66
  4. Step 4: Simplify right side
    5,309.94x = 21,637,476.33
  5. Step 5: Solve for x
    x = 21,637,476.33/5,309.94
  6. Step 6: Final answer
    x = 4,074.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.