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Finding the Fourth Proportional to 51,094.36, 70,509.54 and 28,738.36

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Solution

The fourth proportional to 51,094.36, 70,509.54 and 28,738.36 is: 39,658.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,094.36 : 70,509.54 = 28,738.36 : x
  2. Step 2: Convert to fraction form
    51,094.36/70,509.54 = 28,738.36/x
  3. Step 3: Cross multiply
    51,094.36x = 70,509.54 × 28,738.36
  4. Step 4: Simplify right side
    51,094.36x = 2,026,328,543.95
  5. Step 5: Solve for x
    x = 2,026,328,543.95/51,094.36
  6. Step 6: Final answer
    x = 39,658.56

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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.