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Finding the Fourth Proportional to 56,343.65, 84,392.64 and 28,214.64

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Solution

The fourth proportional to 56,343.65, 84,392.64 and 28,214.64 is: 42,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,343.65 : 84,392.64 = 28,214.64 : x
  2. Step 2: Convert to fraction form
    56,343.65/84,392.64 = 28,214.64/x
  3. Step 3: Cross multiply
    56,343.65x = 84,392.64 × 28,214.64
  4. Step 4: Simplify right side
    56,343.65x = 2,381,107,956.25
  5. Step 5: Solve for x
    x = 2,381,107,956.25/56,343.65
  6. Step 6: Final answer
    x = 42,260.45

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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.