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Finding the Fourth Proportional to 64,497.58, 89,003.66 and 35,819.06

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Solution

The fourth proportional to 64,497.58, 89,003.66 and 35,819.06 is: 49,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,497.58 : 89,003.66 = 35,819.06 : x
  2. Step 2: Convert to fraction form
    64,497.58/89,003.66 = 35,819.06/x
  3. Step 3: Cross multiply
    64,497.58x = 89,003.66 × 35,819.06
  4. Step 4: Simplify right side
    64,497.58x = 3,188,027,437.76
  5. Step 5: Solve for x
    x = 3,188,027,437.76/64,497.58
  6. Step 6: Final answer
    x = 49,428.64

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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.