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Finding the Fourth Proportional to 58,569, 87,800.04 and 21,098.40

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Solution

The fourth proportional to 58,569, 87,800.04 and 21,098.40 is: 31,628.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,569 : 87,800.04 = 21,098.40 : x
  2. Step 2: Convert to fraction form
    58,569/87,800.04 = 21,098.40/x
  3. Step 3: Cross multiply
    58,569x = 87,800.04 × 21,098.40
  4. Step 4: Simplify right side
    58,569x = 1,852,440,363.94
  5. Step 5: Solve for x
    x = 1,852,440,363.94/58,569
  6. Step 6: Final answer
    x = 31,628.34

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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.