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Finding the Fourth Proportional to 34,319, 47,361.22 and 19,211.61

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Solution

The fourth proportional to 34,319, 47,361.22 and 19,211.61 is: 26,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,319 : 47,361.22 = 19,211.61 : x
  2. Step 2: Convert to fraction form
    34,319/47,361.22 = 19,211.61/x
  3. Step 3: Cross multiply
    34,319x = 47,361.22 × 19,211.61
  4. Step 4: Simplify right side
    34,319x = 909,885,287.76
  5. Step 5: Solve for x
    x = 909,885,287.76/34,319
  6. Step 6: Final answer
    x = 26,512.58

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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.