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Finding the Fourth Proportional to 64,005.73, 96,005 and 19,632.36

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Solution

The fourth proportional to 64,005.73, 96,005 and 19,632.36 is: 29,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,005.73 : 96,005 = 19,632.36 : x
  2. Step 2: Convert to fraction form
    64,005.73/96,005 = 19,632.36/x
  3. Step 3: Cross multiply
    64,005.73x = 96,005 × 19,632.36
  4. Step 4: Simplify right side
    64,005.73x = 1,884,804,721.80
  5. Step 5: Solve for x
    x = 1,884,804,721.80/64,005.73
  6. Step 6: Final answer
    x = 29,447.44

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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.