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Finding the Fourth Proportional to 58,764.32, 88,152.64 and 19,321.44

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Solution

The fourth proportional to 58,764.32, 88,152.64 and 19,321.44 is: 28,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,764.32 : 88,152.64 = 19,321.44 : x
  2. Step 2: Convert to fraction form
    58,764.32/88,152.64 = 19,321.44/x
  3. Step 3: Cross multiply
    58,764.32x = 88,152.64 × 19,321.44
  4. Step 4: Simplify right side
    58,764.32x = 1,703,235,944.60
  5. Step 5: Solve for x
    x = 1,703,235,944.60/58,764.32
  6. Step 6: Final answer
    x = 28,984.19

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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.