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Finding the Fourth Proportional to 18,573.86, 27,860.69 and 6,574.91

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Solution

The fourth proportional to 18,573.86, 27,860.69 and 6,574.91 is: 9,862.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.86 : 27,860.69 = 6,574.91 : x
  2. Step 2: Convert to fraction form
    18,573.86/27,860.69 = 6,574.91/x
  3. Step 3: Cross multiply
    18,573.86x = 27,860.69 × 6,574.91
  4. Step 4: Simplify right side
    18,573.86x = 183,181,357.11
  5. Step 5: Solve for x
    x = 183,181,357.11/18,573.86
  6. Step 6: Final answer
    x = 9,862.32

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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.