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Finding the Fourth Proportional to 70,980.34, 106,540.96 and 37,700.68

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Solution

The fourth proportional to 70,980.34, 106,540.96 and 37,700.68 is: 56,588.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,980.34 : 106,540.96 = 37,700.68 : x
  2. Step 2: Convert to fraction form
    70,980.34/106,540.96 = 37,700.68/x
  3. Step 3: Cross multiply
    70,980.34x = 106,540.96 × 37,700.68
  4. Step 4: Simplify right side
    70,980.34x = 4,016,666,639.85
  5. Step 5: Solve for x
    x = 4,016,666,639.85/70,980.34
  6. Step 6: Final answer
    x = 56,588.44

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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.