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Finding the Fourth Proportional to 18,345.52, 27,509.88 and 5,863.12

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Solution

The fourth proportional to 18,345.52, 27,509.88 and 5,863.12 is: 8,792.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.52 : 27,509.88 = 5,863.12 : x
  2. Step 2: Convert to fraction form
    18,345.52/27,509.88 = 5,863.12/x
  3. Step 3: Cross multiply
    18,345.52x = 27,509.88 × 5,863.12
  4. Step 4: Simplify right side
    18,345.52x = 161,293,727.63
  5. Step 5: Solve for x
    x = 161,293,727.63/18,345.52
  6. Step 6: Final answer
    x = 8,792.00

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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.