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Finding the Fourth Proportional to 44,705, 66,955.44 and 21,347.84

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Solution

The fourth proportional to 44,705, 66,955.44 and 21,347.84 is: 31,973.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,705 : 66,955.44 = 21,347.84 : x
  2. Step 2: Convert to fraction form
    44,705/66,955.44 = 21,347.84/x
  3. Step 3: Cross multiply
    44,705x = 66,955.44 × 21,347.84
  4. Step 4: Simplify right side
    44,705x = 1,429,354,020.25
  5. Step 5: Solve for x
    x = 1,429,354,020.25/44,705
  6. Step 6: Final answer
    x = 31,973.02

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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.