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Finding the Fourth Proportional to 44,675.84, 66,911.69 and 21,318.68

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Solution

The fourth proportional to 44,675.84, 66,911.69 and 21,318.68 is: 31,929.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,675.84 : 66,911.69 = 21,318.68 : x
  2. Step 2: Convert to fraction form
    44,675.84/66,911.69 = 21,318.68/x
  3. Step 3: Cross multiply
    44,675.84x = 66,911.69 × 21,318.68
  4. Step 4: Simplify right side
    44,675.84x = 1,426,468,466.22
  5. Step 5: Solve for x
    x = 1,426,468,466.22/44,675.84
  6. Step 6: Final answer
    x = 31,929.31

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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.