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Finding the Fourth Proportional to 64,905.57, 89,569.68 and 35,097.57

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Solution

The fourth proportional to 64,905.57, 89,569.68 and 35,097.57 is: 48,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,905.57 : 89,569.68 = 35,097.57 : x
  2. Step 2: Convert to fraction form
    64,905.57/89,569.68 = 35,097.57/x
  3. Step 3: Cross multiply
    64,905.57x = 89,569.68 × 35,097.57
  4. Step 4: Simplify right side
    64,905.57x = 3,143,678,113.68
  5. Step 5: Solve for x
    x = 3,143,678,113.68/64,905.57
  6. Step 6: Final answer
    x = 48,434.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.