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Finding the Fourth Proportional to 57,940.40, 79,953 and 34,068.08

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Solution

The fourth proportional to 57,940.40, 79,953 and 34,068.08 is: 47,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,940.40 : 79,953 = 34,068.08 : x
  2. Step 2: Convert to fraction form
    57,940.40/79,953 = 34,068.08/x
  3. Step 3: Cross multiply
    57,940.40x = 79,953 × 34,068.08
  4. Step 4: Simplify right side
    57,940.40x = 2,723,845,200.24
  5. Step 5: Solve for x
    x = 2,723,845,200.24/57,940.40
  6. Step 6: Final answer
    x = 47,011.16

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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.