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Finding the Fourth Proportional to 14,865.58, 20,514.36 and 8,151.07

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Solution

The fourth proportional to 14,865.58, 20,514.36 and 8,151.07 is: 11,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865.58 : 20,514.36 = 8,151.07 : x
  2. Step 2: Convert to fraction form
    14,865.58/20,514.36 = 8,151.07/x
  3. Step 3: Cross multiply
    14,865.58x = 20,514.36 × 8,151.07
  4. Step 4: Simplify right side
    14,865.58x = 167,213,984.37
  5. Step 5: Solve for x
    x = 167,213,984.37/14,865.58
  6. Step 6: Final answer
    x = 11,248.40

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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.