Home / 47,772.72-65,915.64-28,909.44

Finding the Fourth Proportional to 47,772.72, 65,915.64 and 28,909.44

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Solution

The fourth proportional to 47,772.72, 65,915.64 and 28,909.44 is: 39,888.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,772.72 : 65,915.64 = 28,909.44 : x
  2. Step 2: Convert to fraction form
    47,772.72/65,915.64 = 28,909.44/x
  3. Step 3: Cross multiply
    47,772.72x = 65,915.64 × 28,909.44
  4. Step 4: Simplify right side
    47,772.72x = 1,905,584,239.64
  5. Step 5: Solve for x
    x = 1,905,584,239.64/47,772.72
  6. Step 6: Final answer
    x = 39,888.54

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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.