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Finding the Fourth Proportional to 70,491.96, 97,273.48 and 40,276.12

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Solution

The fourth proportional to 70,491.96, 97,273.48 and 40,276.12 is: 55,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,491.96 : 97,273.48 = 40,276.12 : x
  2. Step 2: Convert to fraction form
    70,491.96/97,273.48 = 40,276.12/x
  3. Step 3: Cross multiply
    70,491.96x = 97,273.48 × 40,276.12
  4. Step 4: Simplify right side
    70,491.96x = 3,917,798,353.30
  5. Step 5: Solve for x
    x = 3,917,798,353.30/70,491.96
  6. Step 6: Final answer
    x = 55,577.95

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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.