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Finding the Fourth Proportional to 61,330.51, 92,031.21 and 25,789

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Solution

The fourth proportional to 61,330.51, 92,031.21 and 25,789 is: 38,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,330.51 : 92,031.21 = 25,789 : x
  2. Step 2: Convert to fraction form
    61,330.51/92,031.21 = 25,789/x
  3. Step 3: Cross multiply
    61,330.51x = 92,031.21 × 25,789
  4. Step 4: Simplify right side
    61,330.51x = 2,373,392,874.69
  5. Step 5: Solve for x
    x = 2,373,392,874.69/61,330.51
  6. Step 6: Final answer
    x = 38,698.40

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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.