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Finding the Fourth Proportional to 37,420.92, 56,131.56 and 9,718.92

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Solution

The fourth proportional to 37,420.92, 56,131.56 and 9,718.92 is: 14,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.92 : 56,131.56 = 9,718.92 : x
  2. Step 2: Convert to fraction form
    37,420.92/56,131.56 = 9,718.92/x
  3. Step 3: Cross multiply
    37,420.92x = 56,131.56 × 9,718.92
  4. Step 4: Simplify right side
    37,420.92x = 545,538,141.12
  5. Step 5: Solve for x
    x = 545,538,141.12/37,420.92
  6. Step 6: Final answer
    x = 14,578.43

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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.