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Finding the Fourth Proportional to 14,409.70, 19,884.99 and 8,036.49

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Solution

The fourth proportional to 14,409.70, 19,884.99 and 8,036.49 is: 11,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.70 : 19,884.99 = 8,036.49 : x
  2. Step 2: Convert to fraction form
    14,409.70/19,884.99 = 8,036.49/x
  3. Step 3: Cross multiply
    14,409.70x = 19,884.99 × 8,036.49
  4. Step 4: Simplify right side
    14,409.70x = 159,805,423.86
  5. Step 5: Solve for x
    x = 159,805,423.86/14,409.70
  6. Step 6: Final answer
    x = 11,090.13

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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.