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Finding the Fourth Proportional to 60,588.70, 90,887.10 and 20,607.10

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Solution

The fourth proportional to 60,588.70, 90,887.10 and 20,607.10 is: 30,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,588.70 : 90,887.10 = 20,607.10 : x
  2. Step 2: Convert to fraction form
    60,588.70/90,887.10 = 20,607.10/x
  3. Step 3: Cross multiply
    60,588.70x = 90,887.10 × 20,607.10
  4. Step 4: Simplify right side
    60,588.70x = 1,872,919,558.41
  5. Step 5: Solve for x
    x = 1,872,919,558.41/60,588.70
  6. Step 6: Final answer
    x = 30,912.03

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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.