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Finding the Fourth Proportional to 65,845.79, 98,768.79 and 15,925.69

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Solution

The fourth proportional to 65,845.79, 98,768.79 and 15,925.69 is: 23,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,845.79 : 98,768.79 = 15,925.69 : x
  2. Step 2: Convert to fraction form
    65,845.79/98,768.79 = 15,925.69/x
  3. Step 3: Cross multiply
    65,845.79x = 98,768.79 × 15,925.69
  4. Step 4: Simplify right side
    65,845.79x = 1,572,961,021.68
  5. Step 5: Solve for x
    x = 1,572,961,021.68/65,845.79
  6. Step 6: Final answer
    x = 23,888.56

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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.