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Finding the Fourth Proportional to 44,709.88, 66,962.70 and 21,352.84

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Solution

The fourth proportional to 44,709.88, 66,962.70 and 21,352.84 is: 31,980.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,709.88 : 66,962.70 = 21,352.84 : x
  2. Step 2: Convert to fraction form
    44,709.88/66,962.70 = 21,352.84/x
  3. Step 3: Cross multiply
    44,709.88x = 66,962.70 × 21,352.84
  4. Step 4: Simplify right side
    44,709.88x = 1,429,843,819.07
  5. Step 5: Solve for x
    x = 1,429,843,819.07/44,709.88
  6. Step 6: Final answer
    x = 31,980.49

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1.5x scale

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.