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Finding the Fourth Proportional to 28,973.16, 43,432.00 and 9,238.93

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Solution

The fourth proportional to 28,973.16, 43,432.00 and 9,238.93 is: 13,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.16 : 43,432.00 = 9,238.93 : x
  2. Step 2: Convert to fraction form
    28,973.16/43,432.00 = 9,238.93/x
  3. Step 3: Cross multiply
    28,973.16x = 43,432.00 × 9,238.93
  4. Step 4: Simplify right side
    28,973.16x = 401,265,076.08
  5. Step 5: Solve for x
    x = 401,265,076.08/28,973.16
  6. Step 6: Final answer
    x = 13,849.54

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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.