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Finding the Fourth Proportional to 64,472.40, 88,967.45 and 35,789.81

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Solution

The fourth proportional to 64,472.40, 88,967.45 and 35,789.81 is: 49,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,472.40 : 88,967.45 = 35,789.81 : x
  2. Step 2: Convert to fraction form
    64,472.40/88,967.45 = 35,789.81/x
  3. Step 3: Cross multiply
    64,472.40x = 88,967.45 × 35,789.81
  4. Step 4: Simplify right side
    64,472.40x = 3,184,127,776.32
  5. Step 5: Solve for x
    x = 3,184,127,776.32/64,472.40
  6. Step 6: Final answer
    x = 49,387.46

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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.