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Finding the Fourth Proportional to 66,668.03, 92,025.04 and 38,384.99

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Solution

The fourth proportional to 66,668.03, 92,025.04 and 38,384.99 is: 52,984.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,668.03 : 92,025.04 = 38,384.99 : x
  2. Step 2: Convert to fraction form
    66,668.03/92,025.04 = 38,384.99/x
  3. Step 3: Cross multiply
    66,668.03x = 92,025.04 × 38,384.99
  4. Step 4: Simplify right side
    66,668.03x = 3,532,379,780.02
  5. Step 5: Solve for x
    x = 3,532,379,780.02/66,668.03
  6. Step 6: Final answer
    x = 52,984.62

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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.