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Finding the Fourth Proportional to 47,999.60, 72,085.80 and 34,866.80

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Solution

The fourth proportional to 47,999.60, 72,085.80 and 34,866.80 is: 52,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,999.60 : 72,085.80 = 34,866.80 : x
  2. Step 2: Convert to fraction form
    47,999.60/72,085.80 = 34,866.80/x
  3. Step 3: Cross multiply
    47,999.60x = 72,085.80 × 34,866.80
  4. Step 4: Simplify right side
    47,999.60x = 2,513,401,171.44
  5. Step 5: Solve for x
    x = 2,513,401,171.44/47,999.60
  6. Step 6: Final answer
    x = 52,362.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.