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Finding the Fourth Proportional to 18,547.99, 27,823.27 and 7,454.69

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Solution

The fourth proportional to 18,547.99, 27,823.27 and 7,454.69 is: 11,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.99 : 27,823.27 = 7,454.69 : x
  2. Step 2: Convert to fraction form
    18,547.99/27,823.27 = 7,454.69/x
  3. Step 3: Cross multiply
    18,547.99x = 27,823.27 × 7,454.69
  4. Step 4: Simplify right side
    18,547.99x = 207,413,813.20
  5. Step 5: Solve for x
    x = 207,413,813.20/18,547.99
  6. Step 6: Final answer
    x = 11,182.55

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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.