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Finding the Fourth Proportional to 37,209.72, 55,813.14 and 12,585.72

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Solution

The fourth proportional to 37,209.72, 55,813.14 and 12,585.72 is: 18,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,209.72 : 55,813.14 = 12,585.72 : x
  2. Step 2: Convert to fraction form
    37,209.72/55,813.14 = 12,585.72/x
  3. Step 3: Cross multiply
    37,209.72x = 55,813.14 × 12,585.72
  4. Step 4: Simplify right side
    37,209.72x = 702,448,552.36
  5. Step 5: Solve for x
    x = 702,448,552.36/37,209.72
  6. Step 6: Final answer
    x = 18,878.09

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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.