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Finding the Fourth Proportional to 18,570.08, 27,854.76 and 4,719.08

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Solution

The fourth proportional to 18,570.08, 27,854.76 and 4,719.08 is: 7,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.08 : 27,854.76 = 4,719.08 : x
  2. Step 2: Convert to fraction form
    18,570.08/27,854.76 = 4,719.08/x
  3. Step 3: Cross multiply
    18,570.08x = 27,854.76 × 4,719.08
  4. Step 4: Simplify right side
    18,570.08x = 131,448,840.82
  5. Step 5: Solve for x
    x = 131,448,840.82/18,570.08
  6. Step 6: Final answer
    x = 7,078.53

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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.