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Finding the Fourth Proportional to 29,853.60, 44,877.60 and 21,148.80

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Solution

The fourth proportional to 29,853.60, 44,877.60 and 21,148.80 is: 31,792.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,853.60 : 44,877.60 = 21,148.80 : x
  2. Step 2: Convert to fraction form
    29,853.60/44,877.60 = 21,148.80/x
  3. Step 3: Cross multiply
    29,853.60x = 44,877.60 × 21,148.80
  4. Step 4: Simplify right side
    29,853.60x = 949,107,386.88
  5. Step 5: Solve for x
    x = 949,107,386.88/29,853.60
  6. Step 6: Final answer
    x = 31,792.06

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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.