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Finding the Fourth Proportional to 66,689.50, 92,030.22 and 36,474.72

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Solution

The fourth proportional to 66,689.50, 92,030.22 and 36,474.72 is: 50,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,689.50 : 92,030.22 = 36,474.72 : x
  2. Step 2: Convert to fraction form
    66,689.50/92,030.22 = 36,474.72/x
  3. Step 3: Cross multiply
    66,689.50x = 92,030.22 × 36,474.72
  4. Step 4: Simplify right side
    66,689.50x = 3,356,776,506.04
  5. Step 5: Solve for x
    x = 3,356,776,506.04/66,689.50
  6. Step 6: Final answer
    x = 50,334.41

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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.