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Finding the Fourth Proportional to 66,715.64, 100,073.56 and 16,795.74

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Solution

The fourth proportional to 66,715.64, 100,073.56 and 16,795.74 is: 25,193.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,715.64 : 100,073.56 = 16,795.74 : x
  2. Step 2: Convert to fraction form
    66,715.64/100,073.56 = 16,795.74/x
  3. Step 3: Cross multiply
    66,715.64x = 100,073.56 × 16,795.74
  4. Step 4: Simplify right side
    66,715.64x = 1,680,809,494.63
  5. Step 5: Solve for x
    x = 1,680,809,494.63/66,715.64
  6. Step 6: Final answer
    x = 25,193.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.