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Finding the Fourth Proportional to 58,245.51, 87,346.71 and 20,795.52

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Solution

The fourth proportional to 58,245.51, 87,346.71 and 20,795.52 is: 31,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,245.51 : 87,346.71 = 20,795.52 : x
  2. Step 2: Convert to fraction form
    58,245.51/87,346.71 = 20,795.52/x
  3. Step 3: Cross multiply
    58,245.51x = 87,346.71 × 20,795.52
  4. Step 4: Simplify right side
    58,245.51x = 1,816,420,254.74
  5. Step 5: Solve for x
    x = 1,816,420,254.74/58,245.51
  6. Step 6: Final answer
    x = 31,185.58

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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.