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Finding the Fourth Proportional to 52,722.60, 79,016.70 and 21,522.60

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Solution

The fourth proportional to 52,722.60, 79,016.70 and 21,522.60 is: 32,256.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,722.60 : 79,016.70 = 21,522.60 : x
  2. Step 2: Convert to fraction form
    52,722.60/79,016.70 = 21,522.60/x
  3. Step 3: Cross multiply
    52,722.60x = 79,016.70 × 21,522.60
  4. Step 4: Simplify right side
    52,722.60x = 1,700,644,827.42
  5. Step 5: Solve for x
    x = 1,700,644,827.42/52,722.60
  6. Step 6: Final answer
    x = 32,256.47

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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.