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Finding the Fourth Proportional to 5,391.67, 7,424.18 and 4,603.99

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Solution

The fourth proportional to 5,391.67, 7,424.18 and 4,603.99 is: 6,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.67 : 7,424.18 = 4,603.99 : x
  2. Step 2: Convert to fraction form
    5,391.67/7,424.18 = 4,603.99/x
  3. Step 3: Cross multiply
    5,391.67x = 7,424.18 × 4,603.99
  4. Step 4: Simplify right side
    5,391.67x = 34,180,827.46
  5. Step 5: Solve for x
    x = 34,180,827.46/5,391.67
  6. Step 6: Final answer
    x = 6,339.56

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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.