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Finding the Fourth Proportional to 56,054.62, 84,079.50 and 13,933.81

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Solution

The fourth proportional to 56,054.62, 84,079.50 and 13,933.81 is: 20,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,054.62 : 84,079.50 = 13,933.81 : x
  2. Step 2: Convert to fraction form
    56,054.62/84,079.50 = 13,933.81/x
  3. Step 3: Cross multiply
    56,054.62x = 84,079.50 × 13,933.81
  4. Step 4: Simplify right side
    56,054.62x = 1,171,547,777.90
  5. Step 5: Solve for x
    x = 1,171,547,777.90/56,054.62
  6. Step 6: Final answer
    x = 20,900.11

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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.