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Finding the Fourth Proportional to 44,406, 66,641.88 and 21,032.51

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Solution

The fourth proportional to 44,406, 66,641.88 and 21,032.51 is: 31,564.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,406 : 66,641.88 = 21,032.51 : x
  2. Step 2: Convert to fraction form
    44,406/66,641.88 = 21,032.51/x
  3. Step 3: Cross multiply
    44,406x = 66,641.88 × 21,032.51
  4. Step 4: Simplify right side
    44,406x = 1,401,645,674.31
  5. Step 5: Solve for x
    x = 1,401,645,674.31/44,406
  6. Step 6: Final answer
    x = 31,564.33

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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.