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Finding the Fourth Proportional to 6,898.93, 9,521.49 and 4,028.60

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Solution

The fourth proportional to 6,898.93, 9,521.49 and 4,028.60 is: 5,560.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.93 : 9,521.49 = 4,028.60 : x
  2. Step 2: Convert to fraction form
    6,898.93/9,521.49 = 4,028.60/x
  3. Step 3: Cross multiply
    6,898.93x = 9,521.49 × 4,028.60
  4. Step 4: Simplify right side
    6,898.93x = 38,358,211.90
  5. Step 5: Solve for x
    x = 38,358,211.90/6,898.93
  6. Step 6: Final answer
    x = 5,560.02

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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.