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Finding the Fourth Proportional to 5,055.52, 6,971.52 and 3,065.76

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Solution

The fourth proportional to 5,055.52, 6,971.52 and 3,065.76 is: 4,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.52 : 6,971.52 = 3,065.76 : x
  2. Step 2: Convert to fraction form
    5,055.52/6,971.52 = 3,065.76/x
  3. Step 3: Cross multiply
    5,055.52x = 6,971.52 × 3,065.76
  4. Step 4: Simplify right side
    5,055.52x = 21,373,007.16
  5. Step 5: Solve for x
    x = 21,373,007.16/5,055.52
  6. Step 6: Final answer
    x = 4,227.66

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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.