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Finding the Fourth Proportional to 43,794.40, 65,701.20 and 14,207.20

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Solution

The fourth proportional to 43,794.40, 65,701.20 and 14,207.20 is: 21,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,794.40 : 65,701.20 = 14,207.20 : x
  2. Step 2: Convert to fraction form
    43,794.40/65,701.20 = 14,207.20/x
  3. Step 3: Cross multiply
    43,794.40x = 65,701.20 × 14,207.20
  4. Step 4: Simplify right side
    43,794.40x = 933,430,088.64
  5. Step 5: Solve for x
    x = 933,430,088.64/43,794.40
  6. Step 6: Final answer
    x = 21,313.91

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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.