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Finding the Fourth Proportional to 44,703.10, 66,945.30 and 21,302.20

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Solution

The fourth proportional to 44,703.10, 66,945.30 and 21,302.20 is: 31,901.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,703.10 : 66,945.30 = 21,302.20 : x
  2. Step 2: Convert to fraction form
    44,703.10/66,945.30 = 21,302.20/x
  3. Step 3: Cross multiply
    44,703.10x = 66,945.30 × 21,302.20
  4. Step 4: Simplify right side
    44,703.10x = 1,426,082,169.66
  5. Step 5: Solve for x
    x = 1,426,082,169.66/44,703.10
  6. Step 6: Final answer
    x = 31,901.19

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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.