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Finding the Fourth Proportional to 50,312.76, 69,431.62 and 27,956.76

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Solution

The fourth proportional to 50,312.76, 69,431.62 and 27,956.76 is: 38,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,312.76 : 69,431.62 = 27,956.76 : x
  2. Step 2: Convert to fraction form
    50,312.76/69,431.62 = 27,956.76/x
  3. Step 3: Cross multiply
    50,312.76x = 69,431.62 × 27,956.76
  4. Step 4: Simplify right side
    50,312.76x = 1,941,083,136.75
  5. Step 5: Solve for x
    x = 1,941,083,136.75/50,312.76
  6. Step 6: Final answer
    x = 38,580.34

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1.5x scale

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.