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Finding the Fourth Proportional to 21,841.49, 32,753.93 and 7,798.91

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Solution

The fourth proportional to 21,841.49, 32,753.93 and 7,798.91 is: 11,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,841.49 : 32,753.93 = 7,798.91 : x
  2. Step 2: Convert to fraction form
    21,841.49/32,753.93 = 7,798.91/x
  3. Step 3: Cross multiply
    21,841.49x = 32,753.93 × 7,798.91
  4. Step 4: Simplify right side
    21,841.49x = 255,444,749.45
  5. Step 5: Solve for x
    x = 255,444,749.45/21,841.49
  6. Step 6: Final answer
    x = 11,695.39

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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.