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Finding the Fourth Proportional to 53,188.77, 79,782.90 and 15,749.06

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Solution

The fourth proportional to 53,188.77, 79,782.90 and 15,749.06 is: 23,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,188.77 : 79,782.90 = 15,749.06 : x
  2. Step 2: Convert to fraction form
    53,188.77/79,782.90 = 15,749.06/x
  3. Step 3: Cross multiply
    53,188.77x = 79,782.90 × 15,749.06
  4. Step 4: Simplify right side
    53,188.77x = 1,256,505,679.07
  5. Step 5: Solve for x
    x = 1,256,505,679.07/53,188.77
  6. Step 6: Final answer
    x = 23,623.51

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1.5x scale

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.