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Finding the Fourth Proportional to 58,598.36, 87,932.10 and 21,688.28

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Solution

The fourth proportional to 58,598.36, 87,932.10 and 21,688.28 is: 32,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,598.36 : 87,932.10 = 21,688.28 : x
  2. Step 2: Convert to fraction form
    58,598.36/87,932.10 = 21,688.28/x
  3. Step 3: Cross multiply
    58,598.36x = 87,932.10 × 21,688.28
  4. Step 4: Simplify right side
    58,598.36x = 1,907,096,005.79
  5. Step 5: Solve for x
    x = 1,907,096,005.79/58,598.36
  6. Step 6: Final answer
    x = 32,545.21

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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.