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Finding the Fourth Proportional to 9,275.55, 12,800.07 and 5,083.80

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Solution

The fourth proportional to 9,275.55, 12,800.07 and 5,083.80 is: 7,015.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,275.55 : 12,800.07 = 5,083.80 : x
  2. Step 2: Convert to fraction form
    9,275.55/12,800.07 = 5,083.80/x
  3. Step 3: Cross multiply
    9,275.55x = 12,800.07 × 5,083.80
  4. Step 4: Simplify right side
    9,275.55x = 65,072,995.87
  5. Step 5: Solve for x
    x = 65,072,995.87/9,275.55
  6. Step 6: Final answer
    x = 7,015.54

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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.