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Finding the Fourth Proportional to 58,656.12, 80,909.60 and 34,766.80

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Solution

The fourth proportional to 58,656.12, 80,909.60 and 34,766.80 is: 47,956.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,656.12 : 80,909.60 = 34,766.80 : x
  2. Step 2: Convert to fraction form
    58,656.12/80,909.60 = 34,766.80/x
  3. Step 3: Cross multiply
    58,656.12x = 80,909.60 × 34,766.80
  4. Step 4: Simplify right side
    58,656.12x = 2,812,967,881.28
  5. Step 5: Solve for x
    x = 2,812,967,881.28/58,656.12
  6. Step 6: Final answer
    x = 47,956.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.