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Finding the Fourth Proportional to 73,073.64, 109,617.42 and 20,482.98

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Solution

The fourth proportional to 73,073.64, 109,617.42 and 20,482.98 is: 30,726.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,073.64 : 109,617.42 = 20,482.98 : x
  2. Step 2: Convert to fraction form
    73,073.64/109,617.42 = 20,482.98/x
  3. Step 3: Cross multiply
    73,073.64x = 109,617.42 × 20,482.98
  4. Step 4: Simplify right side
    73,073.64x = 2,245,291,421.51
  5. Step 5: Solve for x
    x = 2,245,291,421.51/73,073.64
  6. Step 6: Final answer
    x = 30,726.42

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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.