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Finding the Fourth Proportional to 65,368.88, 98,090.58 and 54,408.32

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Solution

The fourth proportional to 65,368.88, 98,090.58 and 54,408.32 is: 81,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,368.88 : 98,090.58 = 54,408.32 : x
  2. Step 2: Convert to fraction form
    65,368.88/98,090.58 = 54,408.32/x
  3. Step 3: Cross multiply
    65,368.88x = 98,090.58 × 54,408.32
  4. Step 4: Simplify right side
    65,368.88x = 5,336,943,665.63
  5. Step 5: Solve for x
    x = 5,336,943,665.63/65,368.88
  6. Step 6: Final answer
    x = 81,643.49

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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.