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Finding the Fourth Proportional to 22,771.80, 34,157.70 and 21,386.70

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Solution

The fourth proportional to 22,771.80, 34,157.70 and 21,386.70 is: 32,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,771.80 : 34,157.70 = 21,386.70 : x
  2. Step 2: Convert to fraction form
    22,771.80/34,157.70 = 21,386.70/x
  3. Step 3: Cross multiply
    22,771.80x = 34,157.70 × 21,386.70
  4. Step 4: Simplify right side
    22,771.80x = 730,520,482.59
  5. Step 5: Solve for x
    x = 730,520,482.59/22,771.80
  6. Step 6: Final answer
    x = 32,080.05

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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.