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Finding the Fourth Proportional to 13,446.99, 18,549.95 and 7,854.75

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Solution

The fourth proportional to 13,446.99, 18,549.95 and 7,854.75 is: 10,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.99 : 18,549.95 = 7,854.75 : x
  2. Step 2: Convert to fraction form
    13,446.99/18,549.95 = 7,854.75/x
  3. Step 3: Cross multiply
    13,446.99x = 18,549.95 × 7,854.75
  4. Step 4: Simplify right side
    13,446.99x = 145,705,180.49
  5. Step 5: Solve for x
    x = 145,705,180.49/13,446.99
  6. Step 6: Final answer
    x = 10,835.52

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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.