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Finding the Fourth Proportional to 76,425.76, 114,636.72 and 26,541.60

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Solution

The fourth proportional to 76,425.76, 114,636.72 and 26,541.60 is: 39,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,425.76 : 114,636.72 = 26,541.60 : x
  2. Step 2: Convert to fraction form
    76,425.76/114,636.72 = 26,541.60/x
  3. Step 3: Cross multiply
    76,425.76x = 114,636.72 × 26,541.60
  4. Step 4: Simplify right side
    76,425.76x = 3,042,641,967.55
  5. Step 5: Solve for x
    x = 3,042,641,967.55/76,425.76
  6. Step 6: Final answer
    x = 39,811.73

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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.