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Finding the Fourth Proportional to 66,776.06, 92,151 and 36,968.06

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Solution

The fourth proportional to 66,776.06, 92,151 and 36,968.06 is: 51,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,776.06 : 92,151 = 36,968.06 : x
  2. Step 2: Convert to fraction form
    66,776.06/92,151 = 36,968.06/x
  3. Step 3: Cross multiply
    66,776.06x = 92,151 × 36,968.06
  4. Step 4: Simplify right side
    66,776.06x = 3,406,643,927.44
  5. Step 5: Solve for x
    x = 3,406,643,927.44/66,776.06
  6. Step 6: Final answer
    x = 51,015.94

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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.