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Finding the Fourth Proportional to 14,856.20, 20,501.30 and 8,884.47

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Solution

The fourth proportional to 14,856.20, 20,501.30 and 8,884.47 is: 12,260.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,856.20 : 20,501.30 = 8,884.47 : x
  2. Step 2: Convert to fraction form
    14,856.20/20,501.30 = 8,884.47/x
  3. Step 3: Cross multiply
    14,856.20x = 20,501.30 × 8,884.47
  4. Step 4: Simplify right side
    14,856.20x = 182,143,184.81
  5. Step 5: Solve for x
    x = 182,143,184.81/14,856.20
  6. Step 6: Final answer
    x = 12,260.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.