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Finding the Fourth Proportional to 14,615.12, 21,939.06 and 5,856.14

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Solution

The fourth proportional to 14,615.12, 21,939.06 and 5,856.14 is: 8,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.12 : 21,939.06 = 5,856.14 : x
  2. Step 2: Convert to fraction form
    14,615.12/21,939.06 = 5,856.14/x
  3. Step 3: Cross multiply
    14,615.12x = 21,939.06 × 5,856.14
  4. Step 4: Simplify right side
    14,615.12x = 128,478,206.83
  5. Step 5: Solve for x
    x = 128,478,206.83/14,615.12
  6. Step 6: Final answer
    x = 8,790.77

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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.