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Finding the Fourth Proportional to 9,009.52, 12,430.92 and 5,472.52

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Solution

The fourth proportional to 9,009.52, 12,430.92 and 5,472.52 is: 7,550.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.52 : 12,430.92 = 5,472.52 : x
  2. Step 2: Convert to fraction form
    9,009.52/12,430.92 = 5,472.52/x
  3. Step 3: Cross multiply
    9,009.52x = 12,430.92 × 5,472.52
  4. Step 4: Simplify right side
    9,009.52x = 68,028,458.32
  5. Step 5: Solve for x
    x = 68,028,458.32/9,009.52
  6. Step 6: Final answer
    x = 7,550.73

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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.