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Finding the Fourth Proportional to 15,064.56, 20,806.56 and 14,189.76

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Solution

The fourth proportional to 15,064.56, 20,806.56 and 14,189.76 is: 19,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064.56 : 20,806.56 = 14,189.76 : x
  2. Step 2: Convert to fraction form
    15,064.56/20,806.56 = 14,189.76/x
  3. Step 3: Cross multiply
    15,064.56x = 20,806.56 × 14,189.76
  4. Step 4: Simplify right side
    15,064.56x = 295,240,092.83
  5. Step 5: Solve for x
    x = 295,240,092.83/15,064.56
  6. Step 6: Final answer
    x = 19,598.32

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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.