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Finding the Fourth Proportional to 66,488.16, 92,141.84 and 65,226.56

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Solution

The fourth proportional to 66,488.16, 92,141.84 and 65,226.56 is: 90,393.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,488.16 : 92,141.84 = 65,226.56 : x
  2. Step 2: Convert to fraction form
    66,488.16/92,141.84 = 65,226.56/x
  3. Step 3: Cross multiply
    66,488.16x = 92,141.84 × 65,226.56
  4. Step 4: Simplify right side
    66,488.16x = 6,010,095,255.27
  5. Step 5: Solve for x
    x = 6,010,095,255.27/66,488.16
  6. Step 6: Final answer
    x = 90,393.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.