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Finding the Fourth Proportional to 37,986.68, 56,980.07 and 9,906.71

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Solution

The fourth proportional to 37,986.68, 56,980.07 and 9,906.71 is: 14,860.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,986.68 : 56,980.07 = 9,906.71 : x
  2. Step 2: Convert to fraction form
    37,986.68/56,980.07 = 9,906.71/x
  3. Step 3: Cross multiply
    37,986.68x = 56,980.07 × 9,906.71
  4. Step 4: Simplify right side
    37,986.68x = 564,484,979.74
  5. Step 5: Solve for x
    x = 564,484,979.74/37,986.68
  6. Step 6: Final answer
    x = 14,860.08

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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.