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Finding the Fourth Proportional to 53,312, 73,577.04 and 30,956

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Solution

The fourth proportional to 53,312, 73,577.04 and 30,956 is: 42,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,312 : 73,577.04 = 30,956 : x
  2. Step 2: Convert to fraction form
    53,312/73,577.04 = 30,956/x
  3. Step 3: Cross multiply
    53,312x = 73,577.04 × 30,956
  4. Step 4: Simplify right side
    53,312x = 2,277,650,850.24
  5. Step 5: Solve for x
    x = 2,277,650,850.24/53,312
  6. Step 6: Final answer
    x = 42,723.04

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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.