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Finding the Fourth Proportional to 9,155.63, 12,622.54 and 7,273.46

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Solution

The fourth proportional to 9,155.63, 12,622.54 and 7,273.46 is: 10,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.63 : 12,622.54 = 7,273.46 : x
  2. Step 2: Convert to fraction form
    9,155.63/12,622.54 = 7,273.46/x
  3. Step 3: Cross multiply
    9,155.63x = 12,622.54 × 7,273.46
  4. Step 4: Simplify right side
    9,155.63x = 91,809,539.79
  5. Step 5: Solve for x
    x = 91,809,539.79/9,155.63
  6. Step 6: Final answer
    x = 10,027.66

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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.