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Finding the Fourth Proportional to 14,995.52, 20,543.76 and 14,434.79

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Solution

The fourth proportional to 14,995.52, 20,543.76 and 14,434.79 is: 19,775.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.52 : 20,543.76 = 14,434.79 : x
  2. Step 2: Convert to fraction form
    14,995.52/20,543.76 = 14,434.79/x
  3. Step 3: Cross multiply
    14,995.52x = 20,543.76 × 14,434.79
  4. Step 4: Simplify right side
    14,995.52x = 296,544,758.69
  5. Step 5: Solve for x
    x = 296,544,758.69/14,995.52
  6. Step 6: Final answer
    x = 19,775.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.