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Finding the Fourth Proportional to 5,424.79, 7,485.98 and 3,034.99

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Solution

The fourth proportional to 5,424.79, 7,485.98 and 3,034.99 is: 4,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.79 : 7,485.98 = 3,034.99 : x
  2. Step 2: Convert to fraction form
    5,424.79/7,485.98 = 3,034.99/x
  3. Step 3: Cross multiply
    5,424.79x = 7,485.98 × 3,034.99
  4. Step 4: Simplify right side
    5,424.79x = 22,719,874.44
  5. Step 5: Solve for x
    x = 22,719,874.44/5,424.79
  6. Step 6: Final answer
    x = 4,188.16

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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.