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Finding the Fourth Proportional to 7,083.54, 10,631.79 and 5,434.74

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Solution

The fourth proportional to 7,083.54, 10,631.79 and 5,434.74 is: 8,157.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,083.54 : 10,631.79 = 5,434.74 : x
  2. Step 2: Convert to fraction form
    7,083.54/10,631.79 = 5,434.74/x
  3. Step 3: Cross multiply
    7,083.54x = 10,631.79 × 5,434.74
  4. Step 4: Simplify right side
    7,083.54x = 57,781,014.38
  5. Step 5: Solve for x
    x = 57,781,014.38/7,083.54
  6. Step 6: Final answer
    x = 8,157.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.