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Finding the Fourth Proportional to 58,372.92, 87,561.94 and 21,416.76

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Solution

The fourth proportional to 58,372.92, 87,561.94 and 21,416.76 is: 32,126.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,372.92 : 87,561.94 = 21,416.76 : x
  2. Step 2: Convert to fraction form
    58,372.92/87,561.94 = 21,416.76/x
  3. Step 3: Cross multiply
    58,372.92x = 87,561.94 × 21,416.76
  4. Step 4: Simplify right side
    58,372.92x = 1,875,293,054.11
  5. Step 5: Solve for x
    x = 1,875,293,054.11/58,372.92
  6. Step 6: Final answer
    x = 32,126.08

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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.