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Finding the Fourth Proportional to 58,739.62, 88,118.62 and 19,287.76

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Solution

The fourth proportional to 58,739.62, 88,118.62 and 19,287.76 is: 28,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,739.62 : 88,118.62 = 19,287.76 : x
  2. Step 2: Convert to fraction form
    58,739.62/88,118.62 = 19,287.76/x
  3. Step 3: Cross multiply
    58,739.62x = 88,118.62 × 19,287.76
  4. Step 4: Simplify right side
    58,739.62x = 1,699,610,794.09
  5. Step 5: Solve for x
    x = 1,699,610,794.09/58,739.62
  6. Step 6: Final answer
    x = 28,934.66

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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.