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Finding the Fourth Proportional to 34,401.78, 47,475 and 19,297.80

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Solution

The fourth proportional to 34,401.78, 47,475 and 19,297.80 is: 26,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,401.78 : 47,475 = 19,297.80 : x
  2. Step 2: Convert to fraction form
    34,401.78/47,475 = 19,297.80/x
  3. Step 3: Cross multiply
    34,401.78x = 47,475 × 19,297.80
  4. Step 4: Simplify right side
    34,401.78x = 916,163,055
  5. Step 5: Solve for x
    x = 916,163,055/34,401.78
  6. Step 6: Final answer
    x = 26,631.27

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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.