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Finding the Fourth Proportional to 65,646.96, 98,485.08 and 18,896.19

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Solution

The fourth proportional to 65,646.96, 98,485.08 and 18,896.19 is: 28,348.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,646.96 : 98,485.08 = 18,896.19 : x
  2. Step 2: Convert to fraction form
    65,646.96/98,485.08 = 18,896.19/x
  3. Step 3: Cross multiply
    65,646.96x = 98,485.08 × 18,896.19
  4. Step 4: Simplify right side
    65,646.96x = 1,860,992,783.85
  5. Step 5: Solve for x
    x = 1,860,992,783.85/65,646.96
  6. Step 6: Final answer
    x = 28,348.50

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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.