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Finding the Fourth Proportional to 37,161.76, 51,281.76 and 21,247.68

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Solution

The fourth proportional to 37,161.76, 51,281.76 and 21,247.68 is: 29,320.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,161.76 : 51,281.76 = 21,247.68 : x
  2. Step 2: Convert to fraction form
    37,161.76/51,281.76 = 21,247.68/x
  3. Step 3: Cross multiply
    37,161.76x = 51,281.76 × 21,247.68
  4. Step 4: Simplify right side
    37,161.76x = 1,089,618,426.32
  5. Step 5: Solve for x
    x = 1,089,618,426.32/37,161.76
  6. Step 6: Final answer
    x = 29,320.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.