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Finding the Fourth Proportional to 37,289.76, 51,459.73 and 20,522.76

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Solution

The fourth proportional to 37,289.76, 51,459.73 and 20,522.76 is: 28,321.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,289.76 : 51,459.73 = 20,522.76 : x
  2. Step 2: Convert to fraction form
    37,289.76/51,459.73 = 20,522.76/x
  3. Step 3: Cross multiply
    37,289.76x = 51,459.73 × 20,522.76
  4. Step 4: Simplify right side
    37,289.76x = 1,056,095,688.45
  5. Step 5: Solve for x
    x = 1,056,095,688.45/37,289.76
  6. Step 6: Final answer
    x = 28,321.33

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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.