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Finding the Fourth Proportional to 61,813.90, 92,689.80 and 30,226.42

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Solution

The fourth proportional to 61,813.90, 92,689.80 and 30,226.42 is: 45,324.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,813.90 : 92,689.80 = 30,226.42 : x
  2. Step 2: Convert to fraction form
    61,813.90/92,689.80 = 30,226.42/x
  3. Step 3: Cross multiply
    61,813.90x = 92,689.80 × 30,226.42
  4. Step 4: Simplify right side
    61,813.90x = 2,801,680,824.52
  5. Step 5: Solve for x
    x = 2,801,680,824.52/61,813.90
  6. Step 6: Final answer
    x = 45,324.45

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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.