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Finding the Fourth Proportional to 14,859.13, 20,527.92 and 9,766.81

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Solution

The fourth proportional to 14,859.13, 20,527.92 and 9,766.81 is: 13,492.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,859.13 : 20,527.92 = 9,766.81 : x
  2. Step 2: Convert to fraction form
    14,859.13/20,527.92 = 9,766.81/x
  3. Step 3: Cross multiply
    14,859.13x = 20,527.92 × 9,766.81
  4. Step 4: Simplify right side
    14,859.13x = 200,492,294.34
  5. Step 5: Solve for x
    x = 200,492,294.34/14,859.13
  6. Step 6: Final answer
    x = 13,492.87

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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.