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Finding the Fourth Proportional to 58,472.87, 87,709.10 and 21,032.88

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Solution

The fourth proportional to 58,472.87, 87,709.10 and 21,032.88 is: 31,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,472.87 : 87,709.10 = 21,032.88 : x
  2. Step 2: Convert to fraction form
    58,472.87/87,709.10 = 21,032.88/x
  3. Step 3: Cross multiply
    58,472.87x = 87,709.10 × 21,032.88
  4. Step 4: Simplify right side
    58,472.87x = 1,844,774,975.21
  5. Step 5: Solve for x
    x = 1,844,774,975.21/58,472.87
  6. Step 6: Final answer
    x = 31,549.25

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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.