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Finding the Fourth Proportional to 29,043.70, 40,078.74 and 17,104.30

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Solution

The fourth proportional to 29,043.70, 40,078.74 and 17,104.30 is: 23,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,043.70 : 40,078.74 = 17,104.30 : x
  2. Step 2: Convert to fraction form
    29,043.70/40,078.74 = 17,104.30/x
  3. Step 3: Cross multiply
    29,043.70x = 40,078.74 × 17,104.30
  4. Step 4: Simplify right side
    29,043.70x = 685,518,792.58
  5. Step 5: Solve for x
    x = 685,518,792.58/29,043.70
  6. Step 6: Final answer
    x = 23,603.01

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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.