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Finding the Fourth Proportional to 64,216.51, 88,623.44 and 35,931.31

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Solution

The fourth proportional to 64,216.51, 88,623.44 and 35,931.31 is: 49,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,216.51 : 88,623.44 = 35,931.31 : x
  2. Step 2: Convert to fraction form
    64,216.51/88,623.44 = 35,931.31/x
  3. Step 3: Cross multiply
    64,216.51x = 88,623.44 × 35,931.31
  4. Step 4: Simplify right side
    64,216.51x = 3,184,356,295.91
  5. Step 5: Solve for x
    x = 3,184,356,295.91/64,216.51
  6. Step 6: Final answer
    x = 49,587.81

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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.