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Finding the Fourth Proportional to 8,471.09, 11,689.03 and 4,933.42

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Solution

The fourth proportional to 8,471.09, 11,689.03 and 4,933.42 is: 6,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471.09 : 11,689.03 = 4,933.42 : x
  2. Step 2: Convert to fraction form
    8,471.09/11,689.03 = 4,933.42/x
  3. Step 3: Cross multiply
    8,471.09x = 11,689.03 × 4,933.42
  4. Step 4: Simplify right side
    8,471.09x = 57,666,894.38
  5. Step 5: Solve for x
    x = 57,666,894.38/8,471.09
  6. Step 6: Final answer
    x = 6,807.49

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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.