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Finding the Fourth Proportional to 14,483.20, 21,708.60 and 8,246.20

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Solution

The fourth proportional to 14,483.20, 21,708.60 and 8,246.20 is: 12,360.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,483.20 : 21,708.60 = 8,246.20 : x
  2. Step 2: Convert to fraction form
    14,483.20/21,708.60 = 8,246.20/x
  3. Step 3: Cross multiply
    14,483.20x = 21,708.60 × 8,246.20
  4. Step 4: Simplify right side
    14,483.20x = 179,013,457.32
  5. Step 5: Solve for x
    x = 179,013,457.32/14,483.20
  6. Step 6: Final answer
    x = 12,360.08

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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.