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Finding the Fourth Proportional to 65,707.54, 90,676.44 and 35,492.86

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Solution

The fourth proportional to 65,707.54, 90,676.44 and 35,492.86 is: 48,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,707.54 : 90,676.44 = 35,492.86 : x
  2. Step 2: Convert to fraction form
    65,707.54/90,676.44 = 35,492.86/x
  3. Step 3: Cross multiply
    65,707.54x = 90,676.44 × 35,492.86
  4. Step 4: Simplify right side
    65,707.54x = 3,218,365,786.06
  5. Step 5: Solve for x
    x = 3,218,365,786.06/65,707.54
  6. Step 6: Final answer
    x = 48,980.16

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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.