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Finding the Fourth Proportional to 40,701.10, 61,007.10 and 14,392.30

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Solution

The fourth proportional to 40,701.10, 61,007.10 and 14,392.30 is: 21,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,701.10 : 61,007.10 = 14,392.30 : x
  2. Step 2: Convert to fraction form
    40,701.10/61,007.10 = 14,392.30/x
  3. Step 3: Cross multiply
    40,701.10x = 61,007.10 × 14,392.30
  4. Step 4: Simplify right side
    40,701.10x = 878,032,485.33
  5. Step 5: Solve for x
    x = 878,032,485.33/40,701.10
  6. Step 6: Final answer
    x = 21,572.70

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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.