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Finding the Fourth Proportional to 66,880.34, 92,296.63 and 37,806.40

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Solution

The fourth proportional to 66,880.34, 92,296.63 and 37,806.40 is: 52,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880.34 : 92,296.63 = 37,806.40 : x
  2. Step 2: Convert to fraction form
    66,880.34/92,296.63 = 37,806.40/x
  3. Step 3: Cross multiply
    66,880.34x = 92,296.63 × 37,806.40
  4. Step 4: Simplify right side
    66,880.34x = 3,489,403,312.43
  5. Step 5: Solve for x
    x = 3,489,403,312.43/66,880.34
  6. Step 6: Final answer
    x = 52,173.83

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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.