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Finding the Fourth Proportional to 58,407.44, 87,571.20 and 20,966.68

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Solution

The fourth proportional to 58,407.44, 87,571.20 and 20,966.68 is: 31,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,407.44 : 87,571.20 = 20,966.68 : x
  2. Step 2: Convert to fraction form
    58,407.44/87,571.20 = 20,966.68/x
  3. Step 3: Cross multiply
    58,407.44x = 87,571.20 × 20,966.68
  4. Step 4: Simplify right side
    58,407.44x = 1,836,077,327.62
  5. Step 5: Solve for x
    x = 1,836,077,327.62/58,407.44
  6. Step 6: Final answer
    x = 31,435.68

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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.