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Finding the Fourth Proportional to 29,405.55, 40,570.71 and 16,656.70

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Solution

The fourth proportional to 29,405.55, 40,570.71 and 16,656.70 is: 22,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,405.55 : 40,570.71 = 16,656.70 : x
  2. Step 2: Convert to fraction form
    29,405.55/40,570.71 = 16,656.70/x
  3. Step 3: Cross multiply
    29,405.55x = 40,570.71 × 16,656.70
  4. Step 4: Simplify right side
    29,405.55x = 675,774,195.97
  5. Step 5: Solve for x
    x = 675,774,195.97/29,405.55
  6. Step 6: Final answer
    x = 22,981.18

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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.