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Finding the Fourth Proportional to 18,339.84, 27,509.52 and 6,653.04

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Solution

The fourth proportional to 18,339.84, 27,509.52 and 6,653.04 is: 9,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.84 : 27,509.52 = 6,653.04 : x
  2. Step 2: Convert to fraction form
    18,339.84/27,509.52 = 6,653.04/x
  3. Step 3: Cross multiply
    18,339.84x = 27,509.52 × 6,653.04
  4. Step 4: Simplify right side
    18,339.84x = 183,021,936.94
  5. Step 5: Solve for x
    x = 183,021,936.94/18,339.84
  6. Step 6: Final answer
    x = 9,979.47

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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.