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Finding the Fourth Proportional to 29,080.61, 40,135.65 and 17,756.70

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Solution

The fourth proportional to 29,080.61, 40,135.65 and 17,756.70 is: 24,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,080.61 : 40,135.65 = 17,756.70 : x
  2. Step 2: Convert to fraction form
    29,080.61/40,135.65 = 17,756.70/x
  3. Step 3: Cross multiply
    29,080.61x = 40,135.65 × 17,756.70
  4. Step 4: Simplify right side
    29,080.61x = 712,676,696.36
  5. Step 5: Solve for x
    x = 712,676,696.36/29,080.61
  6. Step 6: Final answer
    x = 24,506.94

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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.