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Finding the Fourth Proportional to 7,992.51, 11,985.17 and 3,058.70

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Solution

The fourth proportional to 7,992.51, 11,985.17 and 3,058.70 is: 4,586.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.51 : 11,985.17 = 3,058.70 : x
  2. Step 2: Convert to fraction form
    7,992.51/11,985.17 = 3,058.70/x
  3. Step 3: Cross multiply
    7,992.51x = 11,985.17 × 3,058.70
  4. Step 4: Simplify right side
    7,992.51x = 36,658,964.26
  5. Step 5: Solve for x
    x = 36,658,964.26/7,992.51
  6. Step 6: Final answer
    x = 4,586.67

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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.