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Finding the Fourth Proportional to 60,665.10, 90,997.65 and 60,665.10

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Solution

The fourth proportional to 60,665.10, 90,997.65 and 60,665.10 is: 90,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,665.10 : 90,997.65 = 60,665.10 : x
  2. Step 2: Convert to fraction form
    60,665.10/90,997.65 = 60,665.10/x
  3. Step 3: Cross multiply
    60,665.10x = 90,997.65 × 60,665.10
  4. Step 4: Simplify right side
    60,665.10x = 5,520,381,537.02
  5. Step 5: Solve for x
    x = 5,520,381,537.02/60,665.10
  6. Step 6: Final answer
    x = 90,997.65

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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.