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Finding the Fourth Proportional to 66,846.30, 92,213.37 and 45,328.77

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Solution

The fourth proportional to 66,846.30, 92,213.37 and 45,328.77 is: 62,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,846.30 : 92,213.37 = 45,328.77 : x
  2. Step 2: Convert to fraction form
    66,846.30/92,213.37 = 45,328.77/x
  3. Step 3: Cross multiply
    66,846.30x = 92,213.37 × 45,328.77
  4. Step 4: Simplify right side
    66,846.30x = 4,179,918,639.65
  5. Step 5: Solve for x
    x = 4,179,918,639.65/66,846.30
  6. Step 6: Final answer
    x = 62,530.29

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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.