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Finding the Fourth Proportional to 18,534.65, 25,579.65 and 10,578.08

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Solution

The fourth proportional to 18,534.65, 25,579.65 and 10,578.08 is: 14,598.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,534.65 : 25,579.65 = 10,578.08 : x
  2. Step 2: Convert to fraction form
    18,534.65/25,579.65 = 10,578.08/x
  3. Step 3: Cross multiply
    18,534.65x = 25,579.65 × 10,578.08
  4. Step 4: Simplify right side
    18,534.65x = 270,583,456.17
  5. Step 5: Solve for x
    x = 270,583,456.17/18,534.65
  6. Step 6: Final answer
    x = 14,598.79

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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.