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Finding the Fourth Proportional to 36,772.20, 55,157.88 and 10,477.20

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Solution

The fourth proportional to 36,772.20, 55,157.88 and 10,477.20 is: 15,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,772.20 : 55,157.88 = 10,477.20 : x
  2. Step 2: Convert to fraction form
    36,772.20/55,157.88 = 10,477.20/x
  3. Step 3: Cross multiply
    36,772.20x = 55,157.88 × 10,477.20
  4. Step 4: Simplify right side
    36,772.20x = 577,900,140.34
  5. Step 5: Solve for x
    x = 577,900,140.34/36,772.20
  6. Step 6: Final answer
    x = 15,715.68

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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.