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Finding the Fourth Proportional to 61,479.34, 84,841.80 and 34,622.30

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Solution

The fourth proportional to 61,479.34, 84,841.80 and 34,622.30 is: 47,778.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,479.34 : 84,841.80 = 34,622.30 : x
  2. Step 2: Convert to fraction form
    61,479.34/84,841.80 = 34,622.30/x
  3. Step 3: Cross multiply
    61,479.34x = 84,841.80 × 34,622.30
  4. Step 4: Simplify right side
    61,479.34x = 2,937,418,334.41
  5. Step 5: Solve for x
    x = 2,937,418,334.41/61,479.34
  6. Step 6: Final answer
    x = 47,778.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.