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Finding the Fourth Proportional to 13,305.94, 18,362.18 and 7,337.63

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Solution

The fourth proportional to 13,305.94, 18,362.18 and 7,337.63 is: 10,125.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.94 : 18,362.18 = 7,337.63 : x
  2. Step 2: Convert to fraction form
    13,305.94/18,362.18 = 7,337.63/x
  3. Step 3: Cross multiply
    13,305.94x = 18,362.18 × 7,337.63
  4. Step 4: Simplify right side
    13,305.94x = 134,734,947.08
  5. Step 5: Solve for x
    x = 134,734,947.08/13,305.94
  6. Step 6: Final answer
    x = 10,125.93

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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.