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Finding the Fourth Proportional to 61,343.76, 92,005.26 and 19,790.76

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Solution

The fourth proportional to 61,343.76, 92,005.26 and 19,790.76 is: 29,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,343.76 : 92,005.26 = 19,790.76 : x
  2. Step 2: Convert to fraction form
    61,343.76/92,005.26 = 19,790.76/x
  3. Step 3: Cross multiply
    61,343.76x = 92,005.26 × 19,790.76
  4. Step 4: Simplify right side
    61,343.76x = 1,820,854,019.40
  5. Step 5: Solve for x
    x = 1,820,854,019.40/61,343.76
  6. Step 6: Final answer
    x = 29,682.79

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1.5x scale

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.