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Finding the Fourth Proportional to 65,802.25, 90,807.11 and 35,994.25

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Solution

The fourth proportional to 65,802.25, 90,807.11 and 35,994.25 is: 49,672.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,802.25 : 90,807.11 = 35,994.25 : x
  2. Step 2: Convert to fraction form
    65,802.25/90,807.11 = 35,994.25/x
  3. Step 3: Cross multiply
    65,802.25x = 90,807.11 × 35,994.25
  4. Step 4: Simplify right side
    65,802.25x = 3,268,533,819.12
  5. Step 5: Solve for x
    x = 3,268,533,819.12/65,802.25
  6. Step 6: Final answer
    x = 49,672.07

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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.