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Finding the Fourth Proportional to 57,876.84, 79,880.28 and 34,003.51

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Solution

The fourth proportional to 57,876.84, 79,880.28 and 34,003.51 is: 46,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,876.84 : 79,880.28 = 34,003.51 : x
  2. Step 2: Convert to fraction form
    57,876.84/79,880.28 = 34,003.51/x
  3. Step 3: Cross multiply
    57,876.84x = 79,880.28 × 34,003.51
  4. Step 4: Simplify right side
    57,876.84x = 2,716,210,063.39
  5. Step 5: Solve for x
    x = 2,716,210,063.39/57,876.84
  6. Step 6: Final answer
    x = 46,930.86

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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.