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Finding the Fourth Proportional to 64,400.52, 88,873.54 and 35,720.84

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Solution

The fourth proportional to 64,400.52, 88,873.54 and 35,720.84 is: 49,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,400.52 : 88,873.54 = 35,720.84 : x
  2. Step 2: Convert to fraction form
    64,400.52/88,873.54 = 35,720.84/x
  3. Step 3: Cross multiply
    64,400.52x = 88,873.54 × 35,720.84
  4. Step 4: Simplify right side
    64,400.52x = 3,174,637,502.57
  5. Step 5: Solve for x
    x = 3,174,637,502.57/64,400.52
  6. Step 6: Final answer
    x = 49,295.22

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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.