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Finding the Fourth Proportional to 66,054.94, 91,154.36 and 35,840.32

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Solution

The fourth proportional to 66,054.94, 91,154.36 and 35,840.32 is: 49,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,054.94 : 91,154.36 = 35,840.32 : x
  2. Step 2: Convert to fraction form
    66,054.94/91,154.36 = 35,840.32/x
  3. Step 3: Cross multiply
    66,054.94x = 91,154.36 × 35,840.32
  4. Step 4: Simplify right side
    66,054.94x = 3,267,001,431.80
  5. Step 5: Solve for x
    x = 3,267,001,431.80/66,054.94
  6. Step 6: Final answer
    x = 49,458.85

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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.