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Finding the Fourth Proportional to 37,998.24, 56,978.01 and 12,688.65

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Solution

The fourth proportional to 37,998.24, 56,978.01 and 12,688.65 is: 19,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,998.24 : 56,978.01 = 12,688.65 : x
  2. Step 2: Convert to fraction form
    37,998.24/56,978.01 = 12,688.65/x
  3. Step 3: Cross multiply
    37,998.24x = 56,978.01 × 12,688.65
  4. Step 4: Simplify right side
    37,998.24x = 722,974,164.62
  5. Step 5: Solve for x
    x = 722,974,164.62/37,998.24
  6. Step 6: Final answer
    x = 19,026.52

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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.