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Finding the Fourth Proportional to 30,014.92, 45,051.54 and 14,443.48

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Solution

The fourth proportional to 30,014.92, 45,051.54 and 14,443.48 is: 21,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,014.92 : 45,051.54 = 14,443.48 : x
  2. Step 2: Convert to fraction form
    30,014.92/45,051.54 = 14,443.48/x
  3. Step 3: Cross multiply
    30,014.92x = 45,051.54 × 14,443.48
  4. Step 4: Simplify right side
    30,014.92x = 650,701,016.96
  5. Step 5: Solve for x
    x = 650,701,016.96/30,014.92
  6. Step 6: Final answer
    x = 21,679.25

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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.