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Finding the Fourth Proportional to 29,871.66, 44,817.21 and 14,290.50

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Solution

The fourth proportional to 29,871.66, 44,817.21 and 14,290.50 is: 21,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,871.66 : 44,817.21 = 14,290.50 : x
  2. Step 2: Convert to fraction form
    29,871.66/44,817.21 = 14,290.50/x
  3. Step 3: Cross multiply
    29,871.66x = 44,817.21 × 14,290.50
  4. Step 4: Simplify right side
    29,871.66x = 640,460,339.51
  5. Step 5: Solve for x
    x = 640,460,339.51/29,871.66
  6. Step 6: Final answer
    x = 21,440.40

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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.