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Finding the Fourth Proportional to 47,369.52, 65,395 and 30,612.08

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Solution

The fourth proportional to 47,369.52, 65,395 and 30,612.08 is: 42,260.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,369.52 : 65,395 = 30,612.08 : x
  2. Step 2: Convert to fraction form
    47,369.52/65,395 = 30,612.08/x
  3. Step 3: Cross multiply
    47,369.52x = 65,395 × 30,612.08
  4. Step 4: Simplify right side
    47,369.52x = 2,001,876,971.60
  5. Step 5: Solve for x
    x = 2,001,876,971.60/47,369.52
  6. Step 6: Final answer
    x = 42,260.87

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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.