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Finding the Fourth Proportional to 37,274.95, 55,917.95 and 12,317.64

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Solution

The fourth proportional to 37,274.95, 55,917.95 and 12,317.64 is: 18,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,274.95 : 55,917.95 = 12,317.64 : x
  2. Step 2: Convert to fraction form
    37,274.95/55,917.95 = 12,317.64/x
  3. Step 3: Cross multiply
    37,274.95x = 55,917.95 × 12,317.64
  4. Step 4: Simplify right side
    37,274.95x = 688,777,177.64
  5. Step 5: Solve for x
    x = 688,777,177.64/37,274.95
  6. Step 6: Final answer
    x = 18,478.29

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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.