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Finding the Fourth Proportional to 73,051.80, 109,577.70 and 37,986.90

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Solution

The fourth proportional to 73,051.80, 109,577.70 and 37,986.90 is: 56,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,051.80 : 109,577.70 = 37,986.90 : x
  2. Step 2: Convert to fraction form
    73,051.80/109,577.70 = 37,986.90/x
  3. Step 3: Cross multiply
    73,051.80x = 109,577.70 × 37,986.90
  4. Step 4: Simplify right side
    73,051.80x = 4,162,517,132.13
  5. Step 5: Solve for x
    x = 4,162,517,132.13/73,051.80
  6. Step 6: Final answer
    x = 56,980.35

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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.