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Finding the Fourth Proportional to 9,235.12, 12,735.81 and 7,352.92

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Solution

The fourth proportional to 9,235.12, 12,735.81 and 7,352.92 is: 10,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,235.12 : 12,735.81 = 7,352.92 : x
  2. Step 2: Convert to fraction form
    9,235.12/12,735.81 = 7,352.92/x
  3. Step 3: Cross multiply
    9,235.12x = 12,735.81 × 7,352.92
  4. Step 4: Simplify right side
    9,235.12x = 93,645,346.77
  5. Step 5: Solve for x
    x = 93,645,346.77/9,235.12
  6. Step 6: Final answer
    x = 10,140.13

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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.