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Finding the Fourth Proportional to 52,971.96, 79,457.96 and 13,527.68

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Solution

The fourth proportional to 52,971.96, 79,457.96 and 13,527.68 is: 20,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,971.96 : 79,457.96 = 13,527.68 : x
  2. Step 2: Convert to fraction form
    52,971.96/79,457.96 = 13,527.68/x
  3. Step 3: Cross multiply
    52,971.96x = 79,457.96 × 13,527.68
  4. Step 4: Simplify right side
    52,971.96x = 1,074,881,856.33
  5. Step 5: Solve for x
    x = 1,074,881,856.33/52,971.96
  6. Step 6: Final answer
    x = 20,291.53

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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.