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Finding the Fourth Proportional to 14,903.34, 20,566.64 and 8,188.98

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Solution

The fourth proportional to 14,903.34, 20,566.64 and 8,188.98 is: 11,300.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.34 : 20,566.64 = 8,188.98 : x
  2. Step 2: Convert to fraction form
    14,903.34/20,566.64 = 8,188.98/x
  3. Step 3: Cross multiply
    14,903.34x = 20,566.64 × 8,188.98
  4. Step 4: Simplify right side
    14,903.34x = 168,419,762.68
  5. Step 5: Solve for x
    x = 168,419,762.68/14,903.34
  6. Step 6: Final answer
    x = 11,300.81

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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.