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Finding the Fourth Proportional to 14,903.80, 20,566.02 and 8,189.08

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Solution

The fourth proportional to 14,903.80, 20,566.02 and 8,189.08 is: 11,300.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.80 : 20,566.02 = 8,189.08 : x
  2. Step 2: Convert to fraction form
    14,903.80/20,566.02 = 8,189.08/x
  3. Step 3: Cross multiply
    14,903.80x = 20,566.02 × 8,189.08
  4. Step 4: Simplify right side
    14,903.80x = 168,416,783.06
  5. Step 5: Solve for x
    x = 168,416,783.06/14,903.80
  6. Step 6: Final answer
    x = 11,300.26

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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.