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Finding the Fourth Proportional to 13,472.67, 18,591.62 and 7,504.95

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Solution

The fourth proportional to 13,472.67, 18,591.62 and 7,504.95 is: 10,356.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.67 : 18,591.62 = 7,504.95 : x
  2. Step 2: Convert to fraction form
    13,472.67/18,591.62 = 7,504.95/x
  3. Step 3: Cross multiply
    13,472.67x = 18,591.62 × 7,504.95
  4. Step 4: Simplify right side
    13,472.67x = 139,529,140.99
  5. Step 5: Solve for x
    x = 139,529,140.99/13,472.67
  6. Step 6: Final answer
    x = 10,356.46

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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.