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Finding the Fourth Proportional to 57,409.84, 79,226.94 and 31,916.98

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Solution

The fourth proportional to 57,409.84, 79,226.94 and 31,916.98 is: 44,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,409.84 : 79,226.94 = 31,916.98 : x
  2. Step 2: Convert to fraction form
    57,409.84/79,226.94 = 31,916.98/x
  3. Step 3: Cross multiply
    57,409.84x = 79,226.94 × 31,916.98
  4. Step 4: Simplify right side
    57,409.84x = 2,528,684,659.44
  5. Step 5: Solve for x
    x = 2,528,684,659.44/57,409.84
  6. Step 6: Final answer
    x = 44,046.19

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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.