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Finding the Fourth Proportional to 65,513.44, 98,352.42 and 54,554.32

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Solution

The fourth proportional to 65,513.44, 98,352.42 and 54,554.32 is: 81,899.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,513.44 : 98,352.42 = 54,554.32 : x
  2. Step 2: Convert to fraction form
    65,513.44/98,352.42 = 54,554.32/x
  3. Step 3: Cross multiply
    65,513.44x = 98,352.42 × 54,554.32
  4. Step 4: Simplify right side
    65,513.44x = 5,365,549,393.45
  5. Step 5: Solve for x
    x = 5,365,549,393.45/65,513.44
  6. Step 6: Final answer
    x = 81,899.98

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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.