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Finding the Fourth Proportional to 29,056.50, 40,098.69 and 15,808.50

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Solution

The fourth proportional to 29,056.50, 40,098.69 and 15,808.50 is: 21,816.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,056.50 : 40,098.69 = 15,808.50 : x
  2. Step 2: Convert to fraction form
    29,056.50/40,098.69 = 15,808.50/x
  3. Step 3: Cross multiply
    29,056.50x = 40,098.69 × 15,808.50
  4. Step 4: Simplify right side
    29,056.50x = 633,900,140.87
  5. Step 5: Solve for x
    x = 633,900,140.87/29,056.50
  6. Step 6: Final answer
    x = 21,816.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.