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Finding the Fourth Proportional to 5,726.67, 8,512.79 and 5,558.51

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Solution

The fourth proportional to 5,726.67, 8,512.79 and 5,558.51 is: 8,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.67 : 8,512.79 = 5,558.51 : x
  2. Step 2: Convert to fraction form
    5,726.67/8,512.79 = 5,558.51/x
  3. Step 3: Cross multiply
    5,726.67x = 8,512.79 × 5,558.51
  4. Step 4: Simplify right side
    5,726.67x = 47,318,428.34
  5. Step 5: Solve for x
    x = 47,318,428.34/5,726.67
  6. Step 6: Final answer
    x = 8,262.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.