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Finding the Fourth Proportional to 9,351.04, 12,905.12 and 5,373.12

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Solution

The fourth proportional to 9,351.04, 12,905.12 and 5,373.12 is: 7,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351.04 : 12,905.12 = 5,373.12 : x
  2. Step 2: Convert to fraction form
    9,351.04/12,905.12 = 5,373.12/x
  3. Step 3: Cross multiply
    9,351.04x = 12,905.12 × 5,373.12
  4. Step 4: Simplify right side
    9,351.04x = 69,340,758.37
  5. Step 5: Solve for x
    x = 69,340,758.37/9,351.04
  6. Step 6: Final answer
    x = 7,415.30

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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.