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Finding the Fourth Proportional to 64,714.76, 89,288.35 and 38,866.41

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Solution

The fourth proportional to 64,714.76, 89,288.35 and 38,866.41 is: 53,624.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,714.76 : 89,288.35 = 38,866.41 : x
  2. Step 2: Convert to fraction form
    64,714.76/89,288.35 = 38,866.41/x
  3. Step 3: Cross multiply
    64,714.76x = 89,288.35 × 38,866.41
  4. Step 4: Simplify right side
    64,714.76x = 3,470,317,619.32
  5. Step 5: Solve for x
    x = 3,470,317,619.32/64,714.76
  6. Step 6: Final answer
    x = 53,624.82

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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.