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Finding the Fourth Proportional to 61,007.88, 84,192.30 and 34,149.72

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Solution

The fourth proportional to 61,007.88, 84,192.30 and 34,149.72 is: 47,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,007.88 : 84,192.30 = 34,149.72 : x
  2. Step 2: Convert to fraction form
    61,007.88/84,192.30 = 34,149.72/x
  3. Step 3: Cross multiply
    61,007.88x = 84,192.30 × 34,149.72
  4. Step 4: Simplify right side
    61,007.88x = 2,875,143,471.16
  5. Step 5: Solve for x
    x = 2,875,143,471.16/61,007.88
  6. Step 6: Final answer
    x = 47,127.41

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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.