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Finding the Fourth Proportional to 64,279.48, 88,703.04 and 35,984.56

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Solution

The fourth proportional to 64,279.48, 88,703.04 and 35,984.56 is: 49,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,279.48 : 88,703.04 = 35,984.56 : x
  2. Step 2: Convert to fraction form
    64,279.48/88,703.04 = 35,984.56/x
  3. Step 3: Cross multiply
    64,279.48x = 88,703.04 × 35,984.56
  4. Step 4: Simplify right side
    64,279.48x = 3,191,939,865.06
  5. Step 5: Solve for x
    x = 3,191,939,865.06/64,279.48
  6. Step 6: Final answer
    x = 49,657.21

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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.