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Finding the Fourth Proportional to 33,291.72, 49,937.04 and 9,918.15

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Solution

The fourth proportional to 33,291.72, 49,937.04 and 9,918.15 is: 14,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,291.72 : 49,937.04 = 9,918.15 : x
  2. Step 2: Convert to fraction form
    33,291.72/49,937.04 = 9,918.15/x
  3. Step 3: Cross multiply
    33,291.72x = 49,937.04 × 9,918.15
  4. Step 4: Simplify right side
    33,291.72x = 495,283,053.28
  5. Step 5: Solve for x
    x = 495,283,053.28/33,291.72
  6. Step 6: Final answer
    x = 14,877.06

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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.