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Finding the Fourth Proportional to 38,993.21, 58,493.92 and 12,700.01

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Solution

The fourth proportional to 38,993.21, 58,493.92 and 12,700.01 is: 19,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,993.21 : 58,493.92 = 12,700.01 : x
  2. Step 2: Convert to fraction form
    38,993.21/58,493.92 = 12,700.01/x
  3. Step 3: Cross multiply
    38,993.21x = 58,493.92 × 12,700.01
  4. Step 4: Simplify right side
    38,993.21x = 742,873,044.72
  5. Step 5: Solve for x
    x = 742,873,044.72/38,993.21
  6. Step 6: Final answer
    x = 19,051.34

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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.