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Finding the Fourth Proportional to 52,970.77, 79,436.68 and 21,372.39

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Solution

The fourth proportional to 52,970.77, 79,436.68 and 21,372.39 is: 32,050.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,970.77 : 79,436.68 = 21,372.39 : x
  2. Step 2: Convert to fraction form
    52,970.77/79,436.68 = 21,372.39/x
  3. Step 3: Cross multiply
    52,970.77x = 79,436.68 × 21,372.39
  4. Step 4: Simplify right side
    52,970.77x = 1,697,751,705.27
  5. Step 5: Solve for x
    x = 1,697,751,705.27/52,970.77
  6. Step 6: Final answer
    x = 32,050.73

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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.