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Finding the Fourth Proportional to 61,303.37, 91,956.21 and 16,931.30

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Solution

The fourth proportional to 61,303.37, 91,956.21 and 16,931.30 is: 25,397.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,303.37 : 91,956.21 = 16,931.30 : x
  2. Step 2: Convert to fraction form
    61,303.37/91,956.21 = 16,931.30/x
  3. Step 3: Cross multiply
    61,303.37x = 91,956.21 × 16,931.30
  4. Step 4: Simplify right side
    61,303.37x = 1,556,938,093.72
  5. Step 5: Solve for x
    x = 1,556,938,093.72/61,303.37
  6. Step 6: Final answer
    x = 25,397.27

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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.