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Finding the Fourth Proportional to 35,630.72, 53,472 and 15,931.52

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Solution

The fourth proportional to 35,630.72, 53,472 and 15,931.52 is: 23,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,630.72 : 53,472 = 15,931.52 : x
  2. Step 2: Convert to fraction form
    35,630.72/53,472 = 15,931.52/x
  3. Step 3: Cross multiply
    35,630.72x = 53,472 × 15,931.52
  4. Step 4: Simplify right side
    35,630.72x = 851,890,237.44
  5. Step 5: Solve for x
    x = 851,890,237.44/35,630.72
  6. Step 6: Final answer
    x = 23,908.87

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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.