Home / 66,381.60-99,561.78-22,006.56

Finding the Fourth Proportional to 66,381.60, 99,561.78 and 22,006.56

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Solution

The fourth proportional to 66,381.60, 99,561.78 and 22,006.56 is: 33,006.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,381.60 : 99,561.78 = 22,006.56 : x
  2. Step 2: Convert to fraction form
    66,381.60/99,561.78 = 22,006.56/x
  3. Step 3: Cross multiply
    66,381.60x = 99,561.78 × 22,006.56
  4. Step 4: Simplify right side
    66,381.60x = 2,191,012,285.28
  5. Step 5: Solve for x
    x = 2,191,012,285.28/66,381.60
  6. Step 6: Final answer
    x = 33,006.32

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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.