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Finding the Fourth Proportional to 19,097.56, 28,656.06 and 8,707.96

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Solution

The fourth proportional to 19,097.56, 28,656.06 and 8,707.96 is: 13,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,097.56 : 28,656.06 = 8,707.96 : x
  2. Step 2: Convert to fraction form
    19,097.56/28,656.06 = 8,707.96/x
  3. Step 3: Cross multiply
    19,097.56x = 28,656.06 × 8,707.96
  4. Step 4: Simplify right side
    19,097.56x = 249,535,824.24
  5. Step 5: Solve for x
    x = 249,535,824.24/19,097.56
  6. Step 6: Final answer
    x = 13,066.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.