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Finding the Fourth Proportional to 64,791.48, 89,415.02 and 36,111.14

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Solution

The fourth proportional to 64,791.48, 89,415.02 and 36,111.14 is: 49,834.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,791.48 : 89,415.02 = 36,111.14 : x
  2. Step 2: Convert to fraction form
    64,791.48/89,415.02 = 36,111.14/x
  3. Step 3: Cross multiply
    64,791.48x = 89,415.02 × 36,111.14
  4. Step 4: Simplify right side
    64,791.48x = 3,228,878,305.32
  5. Step 5: Solve for x
    x = 3,228,878,305.32/64,791.48
  6. Step 6: Final answer
    x = 49,834.92

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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.