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Finding the Fourth Proportional to 60,948.34, 91,399.77 and 20,956.01

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Solution

The fourth proportional to 60,948.34, 91,399.77 and 20,956.01 is: 31,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,948.34 : 91,399.77 = 20,956.01 : x
  2. Step 2: Convert to fraction form
    60,948.34/91,399.77 = 20,956.01/x
  3. Step 3: Cross multiply
    60,948.34x = 91,399.77 × 20,956.01
  4. Step 4: Simplify right side
    60,948.34x = 1,915,374,037.12
  5. Step 5: Solve for x
    x = 1,915,374,037.12/60,948.34
  6. Step 6: Final answer
    x = 31,426.19

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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.