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Finding the Fourth Proportional to 36,068.94, 49,789.86 and 31,012.86

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Solution

The fourth proportional to 36,068.94, 49,789.86 and 31,012.86 is: 42,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,068.94 : 49,789.86 = 31,012.86 : x
  2. Step 2: Convert to fraction form
    36,068.94/49,789.86 = 31,012.86/x
  3. Step 3: Cross multiply
    36,068.94x = 49,789.86 × 31,012.86
  4. Step 4: Simplify right side
    36,068.94x = 1,544,125,957.60
  5. Step 5: Solve for x
    x = 1,544,125,957.60/36,068.94
  6. Step 6: Final answer
    x = 42,810.41

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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.