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Finding the Fourth Proportional to 64,805.06, 89,430.99 and 34,997.06

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Solution

The fourth proportional to 64,805.06, 89,430.99 and 34,997.06 is: 48,295.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,805.06 : 89,430.99 = 34,997.06 : x
  2. Step 2: Convert to fraction form
    64,805.06/89,430.99 = 34,997.06/x
  3. Step 3: Cross multiply
    64,805.06x = 89,430.99 × 34,997.06
  4. Step 4: Simplify right side
    64,805.06x = 3,129,821,858.97
  5. Step 5: Solve for x
    x = 3,129,821,858.97/64,805.06
  6. Step 6: Final answer
    x = 48,295.95

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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.