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Finding the Fourth Proportional to 7,903.75, 11,857.35 and 2,973.38

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Solution

The fourth proportional to 7,903.75, 11,857.35 and 2,973.38 is: 4,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.75 : 11,857.35 = 2,973.38 : x
  2. Step 2: Convert to fraction form
    7,903.75/11,857.35 = 2,973.38/x
  3. Step 3: Cross multiply
    7,903.75x = 11,857.35 × 2,973.38
  4. Step 4: Simplify right side
    7,903.75x = 35,256,392.48
  5. Step 5: Solve for x
    x = 35,256,392.48/7,903.75
  6. Step 6: Final answer
    x = 4,460.72

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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.