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Finding the Fourth Proportional to 29,654.71, 40,927.28 and 16,912.40

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Solution

The fourth proportional to 29,654.71, 40,927.28 and 16,912.40 is: 23,341.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,654.71 : 40,927.28 = 16,912.40 : x
  2. Step 2: Convert to fraction form
    29,654.71/40,927.28 = 16,912.40/x
  3. Step 3: Cross multiply
    29,654.71x = 40,927.28 × 16,912.40
  4. Step 4: Simplify right side
    29,654.71x = 692,178,241.07
  5. Step 5: Solve for x
    x = 692,178,241.07/29,654.71
  6. Step 6: Final answer
    x = 23,341.26

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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.