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Finding the Fourth Proportional to 30,291.83, 41,801.79 and 16,862.79

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Solution

The fourth proportional to 30,291.83, 41,801.79 and 16,862.79 is: 23,270.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.83 : 41,801.79 = 16,862.79 : x
  2. Step 2: Convert to fraction form
    30,291.83/41,801.79 = 16,862.79/x
  3. Step 3: Cross multiply
    30,291.83x = 41,801.79 × 16,862.79
  4. Step 4: Simplify right side
    30,291.83x = 704,894,696.40
  5. Step 5: Solve for x
    x = 704,894,696.40/30,291.83
  6. Step 6: Final answer
    x = 23,270.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.