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Finding the Fourth Proportional to 66,937.59, 100,423.26 and 47,254.59

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Solution

The fourth proportional to 66,937.59, 100,423.26 and 47,254.59 is: 70,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,937.59 : 100,423.26 = 47,254.59 : x
  2. Step 2: Convert to fraction form
    66,937.59/100,423.26 = 47,254.59/x
  3. Step 3: Cross multiply
    66,937.59x = 100,423.26 × 47,254.59
  4. Step 4: Simplify right side
    66,937.59x = 4,745,459,977.76
  5. Step 5: Solve for x
    x = 4,745,459,977.76/66,937.59
  6. Step 6: Final answer
    x = 70,893.80

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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.