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Finding the Fourth Proportional to 29,696.31, 40,980.53 and 16,266.76

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Solution

The fourth proportional to 29,696.31, 40,980.53 and 16,266.76 is: 22,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,696.31 : 40,980.53 = 16,266.76 : x
  2. Step 2: Convert to fraction form
    29,696.31/40,980.53 = 16,266.76/x
  3. Step 3: Cross multiply
    29,696.31x = 40,980.53 × 16,266.76
  4. Step 4: Simplify right side
    29,696.31x = 666,620,384.40
  5. Step 5: Solve for x
    x = 666,620,384.40/29,696.31
  6. Step 6: Final answer
    x = 22,447.92

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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.