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Finding the Fourth Proportional to 66,707.70, 92,084.02 and 45,226.87

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Solution

The fourth proportional to 66,707.70, 92,084.02 and 45,226.87 is: 62,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,707.70 : 92,084.02 = 45,226.87 : x
  2. Step 2: Convert to fraction form
    66,707.70/92,084.02 = 45,226.87/x
  3. Step 3: Cross multiply
    66,707.70x = 92,084.02 × 45,226.87
  4. Step 4: Simplify right side
    66,707.70x = 4,164,671,615.94
  5. Step 5: Solve for x
    x = 4,164,671,615.94/66,707.70
  6. Step 6: Final answer
    x = 62,431.65

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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.