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Finding the Fourth Proportional to 4,618.99, 6,358.12 and 4,028.50

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Solution

The fourth proportional to 4,618.99, 6,358.12 and 4,028.50 is: 5,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,618.99 : 6,358.12 = 4,028.50 : x
  2. Step 2: Convert to fraction form
    4,618.99/6,358.12 = 4,028.50/x
  3. Step 3: Cross multiply
    4,618.99x = 6,358.12 × 4,028.50
  4. Step 4: Simplify right side
    4,618.99x = 25,613,686.42
  5. Step 5: Solve for x
    x = 25,613,686.42/4,618.99
  6. Step 6: Final answer
    x = 5,545.30

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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.