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Finding the Fourth Proportional to 65,651.06, 90,605.14 and 38,802.26

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Solution

The fourth proportional to 65,651.06, 90,605.14 and 38,802.26 is: 53,551.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,651.06 : 90,605.14 = 38,802.26 : x
  2. Step 2: Convert to fraction form
    65,651.06/90,605.14 = 38,802.26/x
  3. Step 3: Cross multiply
    65,651.06x = 90,605.14 × 38,802.26
  4. Step 4: Simplify right side
    65,651.06x = 3,515,684,199.62
  5. Step 5: Solve for x
    x = 3,515,684,199.62/65,651.06
  6. Step 6: Final answer
    x = 53,551.07

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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.