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Finding the Fourth Proportional to 53,188.52, 79,782.53 and 15,748.81

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Solution

The fourth proportional to 53,188.52, 79,782.53 and 15,748.81 is: 23,623.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,188.52 : 79,782.53 = 15,748.81 : x
  2. Step 2: Convert to fraction form
    53,188.52/79,782.53 = 15,748.81/x
  3. Step 3: Cross multiply
    53,188.52x = 79,782.53 × 15,748.81
  4. Step 4: Simplify right side
    53,188.52x = 1,256,479,628.09
  5. Step 5: Solve for x
    x = 1,256,479,628.09/53,188.52
  6. Step 6: Final answer
    x = 23,623.14

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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.