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Finding the Fourth Proportional to 65,843.99, 98,776.25 and 21,460.45

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Solution

The fourth proportional to 65,843.99, 98,776.25 and 21,460.45 is: 32,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,843.99 : 98,776.25 = 21,460.45 : x
  2. Step 2: Convert to fraction form
    65,843.99/98,776.25 = 21,460.45/x
  3. Step 3: Cross multiply
    65,843.99x = 98,776.25 × 21,460.45
  4. Step 4: Simplify right side
    65,843.99x = 2,119,782,173.13
  5. Step 5: Solve for x
    x = 2,119,782,173.13/65,843.99
  6. Step 6: Final answer
    x = 32,194.01

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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.