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Finding the Fourth Proportional to 44,304.40, 66,469.40 and 13,140.40

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Solution

The fourth proportional to 44,304.40, 66,469.40 and 13,140.40 is: 19,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,304.40 : 66,469.40 = 13,140.40 : x
  2. Step 2: Convert to fraction form
    44,304.40/66,469.40 = 13,140.40/x
  3. Step 3: Cross multiply
    44,304.40x = 66,469.40 × 13,140.40
  4. Step 4: Simplify right side
    44,304.40x = 873,434,503.76
  5. Step 5: Solve for x
    x = 873,434,503.76/44,304.40
  6. Step 6: Final answer
    x = 19,714.40

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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.