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Finding the Fourth Proportional to 65,285.36, 90,093.48 and 35,477.36

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Solution

The fourth proportional to 65,285.36, 90,093.48 and 35,477.36 is: 48,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,285.36 : 90,093.48 = 35,477.36 : x
  2. Step 2: Convert to fraction form
    65,285.36/90,093.48 = 35,477.36/x
  3. Step 3: Cross multiply
    65,285.36x = 90,093.48 × 35,477.36
  4. Step 4: Simplify right side
    65,285.36x = 3,196,278,823.61
  5. Step 5: Solve for x
    x = 3,196,278,823.61/65,285.36
  6. Step 6: Final answer
    x = 48,958.58

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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.