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Finding the Fourth Proportional to 64,410.92, 96,618.54 and 19,434.32

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Solution

The fourth proportional to 64,410.92, 96,618.54 and 19,434.32 is: 29,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,410.92 : 96,618.54 = 19,434.32 : x
  2. Step 2: Convert to fraction form
    64,410.92/96,618.54 = 19,434.32/x
  3. Step 3: Cross multiply
    64,410.92x = 96,618.54 × 19,434.32
  4. Step 4: Simplify right side
    64,410.92x = 1,877,715,624.29
  5. Step 5: Solve for x
    x = 1,877,715,624.29/64,410.92
  6. Step 6: Final answer
    x = 29,152.13

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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.