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Finding the Fourth Proportional to 43,360.72, 64,973.04 and 25,820.98

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Solution

The fourth proportional to 43,360.72, 64,973.04 and 25,820.98 is: 38,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,360.72 : 64,973.04 = 25,820.98 : x
  2. Step 2: Convert to fraction form
    43,360.72/64,973.04 = 25,820.98/x
  3. Step 3: Cross multiply
    43,360.72x = 64,973.04 × 25,820.98
  4. Step 4: Simplify right side
    43,360.72x = 1,677,667,566.38
  5. Step 5: Solve for x
    x = 1,677,667,566.38/43,360.72
  6. Step 6: Final answer
    x = 38,690.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.