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Finding the Fourth Proportional to 18,032.32, 27,058.16 and 7,509.61

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Solution

The fourth proportional to 18,032.32, 27,058.16 and 7,509.61 is: 11,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,032.32 : 27,058.16 = 7,509.61 : x
  2. Step 2: Convert to fraction form
    18,032.32/27,058.16 = 7,509.61/x
  3. Step 3: Cross multiply
    18,032.32x = 27,058.16 × 7,509.61
  4. Step 4: Simplify right side
    18,032.32x = 203,196,180.05
  5. Step 5: Solve for x
    x = 203,196,180.05/18,032.32
  6. Step 6: Final answer
    x = 11,268.45

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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.