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Finding the Fourth Proportional to 65,006.91, 97,522.47 and 20,621.70

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Solution

The fourth proportional to 65,006.91, 97,522.47 and 20,621.70 is: 30,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,006.91 : 97,522.47 = 20,621.70 : x
  2. Step 2: Convert to fraction form
    65,006.91/97,522.47 = 20,621.70/x
  3. Step 3: Cross multiply
    65,006.91x = 97,522.47 × 20,621.70
  4. Step 4: Simplify right side
    65,006.91x = 2,011,079,119.60
  5. Step 5: Solve for x
    x = 2,011,079,119.60/65,006.91
  6. Step 6: Final answer
    x = 30,936.39

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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.