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Finding the Fourth Proportional to 9,157.05, 12,624.80 and 9,033.12

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Solution

The fourth proportional to 9,157.05, 12,624.80 and 9,033.12 is: 12,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.05 : 12,624.80 = 9,033.12 : x
  2. Step 2: Convert to fraction form
    9,157.05/12,624.80 = 9,033.12/x
  3. Step 3: Cross multiply
    9,157.05x = 12,624.80 × 9,033.12
  4. Step 4: Simplify right side
    9,157.05x = 114,041,288.21
  5. Step 5: Solve for x
    x = 114,041,288.21/9,157.05
  6. Step 6: Final answer
    x = 12,453.93

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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.