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Finding the Fourth Proportional to 61,511.10, 91,929.60 and 44,906.10

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Solution

The fourth proportional to 61,511.10, 91,929.60 and 44,906.10 is: 67,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,511.10 : 91,929.60 = 44,906.10 : x
  2. Step 2: Convert to fraction form
    61,511.10/91,929.60 = 44,906.10/x
  3. Step 3: Cross multiply
    61,511.10x = 91,929.60 × 44,906.10
  4. Step 4: Simplify right side
    61,511.10x = 4,128,199,810.56
  5. Step 5: Solve for x
    x = 4,128,199,810.56/61,511.10
  6. Step 6: Final answer
    x = 67,113.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.