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Finding the Fourth Proportional to 64,021.60, 96,032.40 and 17,274.40

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Solution

The fourth proportional to 64,021.60, 96,032.40 and 17,274.40 is: 25,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,021.60 : 96,032.40 = 17,274.40 : x
  2. Step 2: Convert to fraction form
    64,021.60/96,032.40 = 17,274.40/x
  3. Step 3: Cross multiply
    64,021.60x = 96,032.40 × 17,274.40
  4. Step 4: Simplify right side
    64,021.60x = 1,658,902,090.56
  5. Step 5: Solve for x
    x = 1,658,902,090.56/64,021.60
  6. Step 6: Final answer
    x = 25,911.60

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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.