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Finding the Fourth Proportional to 18,006.64, 27,004.52 and 4,859.16

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Solution

The fourth proportional to 18,006.64, 27,004.52 and 4,859.16 is: 7,287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,006.64 : 27,004.52 = 4,859.16 : x
  2. Step 2: Convert to fraction form
    18,006.64/27,004.52 = 4,859.16/x
  3. Step 3: Cross multiply
    18,006.64x = 27,004.52 × 4,859.16
  4. Step 4: Simplify right side
    18,006.64x = 131,219,283.40
  5. Step 5: Solve for x
    x = 131,219,283.40/18,006.64
  6. Step 6: Final answer
    x = 7,287.27

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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.