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Finding the Fourth Proportional to 14,490.48, 19,995.48 and 11,513.52

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Solution

The fourth proportional to 14,490.48, 19,995.48 and 11,513.52 is: 15,887.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.48 : 19,995.48 = 11,513.52 : x
  2. Step 2: Convert to fraction form
    14,490.48/19,995.48 = 11,513.52/x
  3. Step 3: Cross multiply
    14,490.48x = 19,995.48 × 11,513.52
  4. Step 4: Simplify right side
    14,490.48x = 230,218,358.89
  5. Step 5: Solve for x
    x = 230,218,358.89/14,490.48
  6. Step 6: Final answer
    x = 15,887.56

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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.