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Finding the Fourth Proportional to 9,362.36, 12,908.80 and 7,571.76

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Solution

The fourth proportional to 9,362.36, 12,908.80 and 7,571.76 is: 10,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.36 : 12,908.80 = 7,571.76 : x
  2. Step 2: Convert to fraction form
    9,362.36/12,908.80 = 7,571.76/x
  3. Step 3: Cross multiply
    9,362.36x = 12,908.80 × 7,571.76
  4. Step 4: Simplify right side
    9,362.36x = 97,742,335.49
  5. Step 5: Solve for x
    x = 97,742,335.49/9,362.36
  6. Step 6: Final answer
    x = 10,439.92

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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.