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Finding the Fourth Proportional to 61,071.87, 84,281.60 and 34,214.60

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Solution

The fourth proportional to 61,071.87, 84,281.60 and 34,214.60 is: 47,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,071.87 : 84,281.60 = 34,214.60 : x
  2. Step 2: Convert to fraction form
    61,071.87/84,281.60 = 34,214.60/x
  3. Step 3: Cross multiply
    61,071.87x = 84,281.60 × 34,214.60
  4. Step 4: Simplify right side
    61,071.87x = 2,883,660,638.88
  5. Step 5: Solve for x
    x = 2,883,660,638.88/61,071.87
  6. Step 6: Final answer
    x = 47,217.49

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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.