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Finding the Fourth Proportional to 9,338.81, 13,973.61 and 7,484.30

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Solution

The fourth proportional to 9,338.81, 13,973.61 and 7,484.30 is: 11,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.81 : 13,973.61 = 7,484.30 : x
  2. Step 2: Convert to fraction form
    9,338.81/13,973.61 = 7,484.30/x
  3. Step 3: Cross multiply
    9,338.81x = 13,973.61 × 7,484.30
  4. Step 4: Simplify right side
    9,338.81x = 104,582,699.92
  5. Step 5: Solve for x
    x = 104,582,699.92/9,338.81
  6. Step 6: Final answer
    x = 11,198.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.