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Finding the Fourth Proportional to 14,890.19, 20,548.72 and 8,176.10

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Solution

The fourth proportional to 14,890.19, 20,548.72 and 8,176.10 is: 11,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,890.19 : 20,548.72 = 8,176.10 : x
  2. Step 2: Convert to fraction form
    14,890.19/20,548.72 = 8,176.10/x
  3. Step 3: Cross multiply
    14,890.19x = 20,548.72 × 8,176.10
  4. Step 4: Simplify right side
    14,890.19x = 168,008,389.59
  5. Step 5: Solve for x
    x = 168,008,389.59/14,890.19
  6. Step 6: Final answer
    x = 11,283.16

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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.