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Finding the Fourth Proportional to 71,365.30, 107,015.55 and 26,977.30

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Solution

The fourth proportional to 71,365.30, 107,015.55 and 26,977.30 is: 40,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,365.30 : 107,015.55 = 26,977.30 : x
  2. Step 2: Convert to fraction form
    71,365.30/107,015.55 = 26,977.30/x
  3. Step 3: Cross multiply
    71,365.30x = 107,015.55 × 26,977.30
  4. Step 4: Simplify right side
    71,365.30x = 2,886,990,597.02
  5. Step 5: Solve for x
    x = 2,886,990,597.02/71,365.30
  6. Step 6: Final answer
    x = 40,453.70

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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.