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Finding the Fourth Proportional to 58,580.10, 87,808.11 and 19,126.62

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Solution

The fourth proportional to 58,580.10, 87,808.11 and 19,126.62 is: 28,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,580.10 : 87,808.11 = 19,126.62 : x
  2. Step 2: Convert to fraction form
    58,580.10/87,808.11 = 19,126.62/x
  3. Step 3: Cross multiply
    58,580.10x = 87,808.11 × 19,126.62
  4. Step 4: Simplify right side
    58,580.10x = 1,679,472,352.89
  5. Step 5: Solve for x
    x = 1,679,472,352.89/58,580.10
  6. Step 6: Final answer
    x = 28,669.67

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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.