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Finding the Fourth Proportional to 5,028.99, 6,931.98 and 3,965.01

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Solution

The fourth proportional to 5,028.99, 6,931.98 and 3,965.01 is: 5,465.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.99 : 6,931.98 = 3,965.01 : x
  2. Step 2: Convert to fraction form
    5,028.99/6,931.98 = 3,965.01/x
  3. Step 3: Cross multiply
    5,028.99x = 6,931.98 × 3,965.01
  4. Step 4: Simplify right side
    5,028.99x = 27,485,370.02
  5. Step 5: Solve for x
    x = 27,485,370.02/5,028.99
  6. Step 6: Final answer
    x = 5,465.39

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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.