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Finding the Fourth Proportional to 36,772.86, 55,159.86 and 10,478.22

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Solution

The fourth proportional to 36,772.86, 55,159.86 and 10,478.22 is: 15,717.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,772.86 : 55,159.86 = 10,478.22 : x
  2. Step 2: Convert to fraction form
    36,772.86/55,159.86 = 10,478.22/x
  3. Step 3: Cross multiply
    36,772.86x = 55,159.86 × 10,478.22
  4. Step 4: Simplify right side
    36,772.86x = 577,977,148.25
  5. Step 5: Solve for x
    x = 577,977,148.25/36,772.86
  6. Step 6: Final answer
    x = 15,717.49

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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.