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Finding the Fourth Proportional to 60,309.36, 90,461.88 and 15,936.21

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Solution

The fourth proportional to 60,309.36, 90,461.88 and 15,936.21 is: 23,903.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,309.36 : 90,461.88 = 15,936.21 : x
  2. Step 2: Convert to fraction form
    60,309.36/90,461.88 = 15,936.21/x
  3. Step 3: Cross multiply
    60,309.36x = 90,461.88 × 15,936.21
  4. Step 4: Simplify right side
    60,309.36x = 1,441,619,516.67
  5. Step 5: Solve for x
    x = 1,441,619,516.67/60,309.36
  6. Step 6: Final answer
    x = 23,903.74

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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.