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Finding the Fourth Proportional to 64,085.74, 96,128.61 and 41,917.76

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Solution

The fourth proportional to 64,085.74, 96,128.61 and 41,917.76 is: 62,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,085.74 : 96,128.61 = 41,917.76 : x
  2. Step 2: Convert to fraction form
    64,085.74/96,128.61 = 41,917.76/x
  3. Step 3: Cross multiply
    64,085.74x = 96,128.61 × 41,917.76
  4. Step 4: Simplify right side
    64,085.74x = 4,029,496,003.11
  5. Step 5: Solve for x
    x = 4,029,496,003.11/64,085.74
  6. Step 6: Final answer
    x = 62,876.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.