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Finding the Fourth Proportional to 44,407.79, 66,622.15 and 14,421.93

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Solution

The fourth proportional to 44,407.79, 66,622.15 and 14,421.93 is: 21,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,407.79 : 66,622.15 = 14,421.93 : x
  2. Step 2: Convert to fraction form
    44,407.79/66,622.15 = 14,421.93/x
  3. Step 3: Cross multiply
    44,407.79x = 66,622.15 × 14,421.93
  4. Step 4: Simplify right side
    44,407.79x = 960,819,983.75
  5. Step 5: Solve for x
    x = 960,819,983.75/44,407.79
  6. Step 6: Final answer
    x = 21,636.29

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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.