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Finding the Fourth Proportional to 44,274.40, 66,411.60 and 20,946.40

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Solution

The fourth proportional to 44,274.40, 66,411.60 and 20,946.40 is: 31,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,274.40 : 66,411.60 = 20,946.40 : x
  2. Step 2: Convert to fraction form
    44,274.40/66,411.60 = 20,946.40/x
  3. Step 3: Cross multiply
    44,274.40x = 66,411.60 × 20,946.40
  4. Step 4: Simplify right side
    44,274.40x = 1,391,083,938.24
  5. Step 5: Solve for x
    x = 1,391,083,938.24/44,274.40
  6. Step 6: Final answer
    x = 31,419.60

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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.