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Finding the Fourth Proportional to 18,909.50, 26,095.11 and 10,525.82

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Solution

The fourth proportional to 18,909.50, 26,095.11 and 10,525.82 is: 14,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.50 : 26,095.11 = 10,525.82 : x
  2. Step 2: Convert to fraction form
    18,909.50/26,095.11 = 10,525.82/x
  3. Step 3: Cross multiply
    18,909.50x = 26,095.11 × 10,525.82
  4. Step 4: Simplify right side
    18,909.50x = 274,672,430.74
  5. Step 5: Solve for x
    x = 274,672,430.74/18,909.50
  6. Step 6: Final answer
    x = 14,525.63

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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.