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Finding the Fourth Proportional to 67,778.76, 93,534.68 and 37,970.76

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Solution

The fourth proportional to 67,778.76, 93,534.68 and 37,970.76 is: 52,399.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,778.76 : 93,534.68 = 37,970.76 : x
  2. Step 2: Convert to fraction form
    67,778.76/93,534.68 = 37,970.76/x
  3. Step 3: Cross multiply
    67,778.76x = 93,534.68 × 37,970.76
  4. Step 4: Simplify right side
    67,778.76x = 3,551,582,885.96
  5. Step 5: Solve for x
    x = 3,551,582,885.96/67,778.76
  6. Step 6: Final answer
    x = 52,399.64

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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.