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Finding the Fourth Proportional to 67,516.92, 92,904 and 65,462.51

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Solution

The fourth proportional to 67,516.92, 92,904 and 65,462.51 is: 90,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,516.92 : 92,904 = 65,462.51 : x
  2. Step 2: Convert to fraction form
    67,516.92/92,904 = 65,462.51/x
  3. Step 3: Cross multiply
    67,516.92x = 92,904 × 65,462.51
  4. Step 4: Simplify right side
    67,516.92x = 6,081,728,564.52
  5. Step 5: Solve for x
    x = 6,081,728,564.52/67,516.92
  6. Step 6: Final answer
    x = 90,077.10

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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.