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Finding the Fourth Proportional to 57,913.80, 79,910.76 and 34,045.32

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Solution

The fourth proportional to 57,913.80, 79,910.76 and 34,045.32 is: 46,976.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,913.80 : 79,910.76 = 34,045.32 : x
  2. Step 2: Convert to fraction form
    57,913.80/79,910.76 = 34,045.32/x
  3. Step 3: Cross multiply
    57,913.80x = 79,910.76 × 34,045.32
  4. Step 4: Simplify right side
    57,913.80x = 2,720,587,395.64
  5. Step 5: Solve for x
    x = 2,720,587,395.64/57,913.80
  6. Step 6: Final answer
    x = 46,976.50

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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.