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Finding the Fourth Proportional to 56,907.60, 85,361.40 and 17,464.80

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Solution

The fourth proportional to 56,907.60, 85,361.40 and 17,464.80 is: 26,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,907.60 : 85,361.40 = 17,464.80 : x
  2. Step 2: Convert to fraction form
    56,907.60/85,361.40 = 17,464.80/x
  3. Step 3: Cross multiply
    56,907.60x = 85,361.40 × 17,464.80
  4. Step 4: Simplify right side
    56,907.60x = 1,490,819,778.72
  5. Step 5: Solve for x
    x = 1,490,819,778.72/56,907.60
  6. Step 6: Final answer
    x = 26,197.20

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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.