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Finding the Fourth Proportional to 64,907.60, 97,361.24 and 15,659.60

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Solution

The fourth proportional to 64,907.60, 97,361.24 and 15,659.60 is: 23,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,907.60 : 97,361.24 = 15,659.60 : x
  2. Step 2: Convert to fraction form
    64,907.60/97,361.24 = 15,659.60/x
  3. Step 3: Cross multiply
    64,907.60x = 97,361.24 × 15,659.60
  4. Step 4: Simplify right side
    64,907.60x = 1,524,638,073.90
  5. Step 5: Solve for x
    x = 1,524,638,073.90/64,907.60
  6. Step 6: Final answer
    x = 23,489.36

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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.