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Finding the Fourth Proportional to 29,663.50, 40,940.22 and 16,916.70

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Solution

The fourth proportional to 29,663.50, 40,940.22 and 16,916.70 is: 23,347.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,663.50 : 40,940.22 = 16,916.70 : x
  2. Step 2: Convert to fraction form
    29,663.50/40,940.22 = 16,916.70/x
  3. Step 3: Cross multiply
    29,663.50x = 40,940.22 × 16,916.70
  4. Step 4: Simplify right side
    29,663.50x = 692,573,419.67
  5. Step 5: Solve for x
    x = 692,573,419.67/29,663.50
  6. Step 6: Final answer
    x = 23,347.66

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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.