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Finding the Fourth Proportional to 64,280.48, 88,704.42 and 35,985.56

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Solution

The fourth proportional to 64,280.48, 88,704.42 and 35,985.56 is: 49,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,280.48 : 88,704.42 = 35,985.56 : x
  2. Step 2: Convert to fraction form
    64,280.48/88,704.42 = 35,985.56/x
  3. Step 3: Cross multiply
    64,280.48x = 88,704.42 × 35,985.56
  4. Step 4: Simplify right side
    64,280.48x = 3,192,078,228.18
  5. Step 5: Solve for x
    x = 3,192,078,228.18/64,280.48
  6. Step 6: Final answer
    x = 49,658.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.