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Finding the Fourth Proportional to 58,018, 87,035.30 and 22,007.70

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Solution

The fourth proportional to 58,018, 87,035.30 and 22,007.70 is: 33,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,018 : 87,035.30 = 22,007.70 : x
  2. Step 2: Convert to fraction form
    58,018/87,035.30 = 22,007.70/x
  3. Step 3: Cross multiply
    58,018x = 87,035.30 × 22,007.70
  4. Step 4: Simplify right side
    58,018x = 1,915,446,771.81
  5. Step 5: Solve for x
    x = 1,915,446,771.81/58,018
  6. Step 6: Final answer
    x = 33,014.70

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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.