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Finding the Fourth Proportional to 61,211.70, 84,461.48 and 34,355.34

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Solution

The fourth proportional to 61,211.70, 84,461.48 and 34,355.34 is: 47,404.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,211.70 : 84,461.48 = 34,355.34 : x
  2. Step 2: Convert to fraction form
    61,211.70/84,461.48 = 34,355.34/x
  3. Step 3: Cross multiply
    61,211.70x = 84,461.48 × 34,355.34
  4. Step 4: Simplify right side
    61,211.70x = 2,901,703,012.61
  5. Step 5: Solve for x
    x = 2,901,703,012.61/61,211.70
  6. Step 6: Final answer
    x = 47,404.39

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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.