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Finding the Fourth Proportional to 64,961.95, 89,647.79 and 35,153.95

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Solution

The fourth proportional to 64,961.95, 89,647.79 and 35,153.95 is: 48,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,961.95 : 89,647.79 = 35,153.95 : x
  2. Step 2: Convert to fraction form
    64,961.95/89,647.79 = 35,153.95/x
  3. Step 3: Cross multiply
    64,961.95x = 89,647.79 × 35,153.95
  4. Step 4: Simplify right side
    64,961.95x = 3,151,473,303.26
  5. Step 5: Solve for x
    x = 3,151,473,303.26/64,961.95
  6. Step 6: Final answer
    x = 48,512.61

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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.