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Finding the Fourth Proportional to 21,843.03, 32,771.45 and 7,802.76

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Solution

The fourth proportional to 21,843.03, 32,771.45 and 7,802.76 is: 11,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.03 : 32,771.45 = 7,802.76 : x
  2. Step 2: Convert to fraction form
    21,843.03/32,771.45 = 7,802.76/x
  3. Step 3: Cross multiply
    21,843.03x = 32,771.45 × 7,802.76
  4. Step 4: Simplify right side
    21,843.03x = 255,707,720.19
  5. Step 5: Solve for x
    x = 255,707,720.19/21,843.03
  6. Step 6: Final answer
    x = 11,706.60

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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.