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Finding the Fourth Proportional to 14,980.74, 20,674.20 and 9,014.28

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Solution

The fourth proportional to 14,980.74, 20,674.20 and 9,014.28 is: 12,440.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.74 : 20,674.20 = 9,014.28 : x
  2. Step 2: Convert to fraction form
    14,980.74/20,674.20 = 9,014.28/x
  3. Step 3: Cross multiply
    14,980.74x = 20,674.20 × 9,014.28
  4. Step 4: Simplify right side
    14,980.74x = 186,363,027.58
  5. Step 5: Solve for x
    x = 186,363,027.58/14,980.74
  6. Step 6: Final answer
    x = 12,440.18

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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.