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Finding the Fourth Proportional to 58,472.76, 87,748.06 and 21,536.76

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Solution

The fourth proportional to 58,472.76, 87,748.06 and 21,536.76 is: 32,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,472.76 : 87,748.06 = 21,536.76 : x
  2. Step 2: Convert to fraction form
    58,472.76/87,748.06 = 21,536.76/x
  3. Step 3: Cross multiply
    58,472.76x = 87,748.06 × 21,536.76
  4. Step 4: Simplify right side
    58,472.76x = 1,889,808,908.69
  5. Step 5: Solve for x
    x = 1,889,808,908.69/58,472.76
  6. Step 6: Final answer
    x = 32,319.48

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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.