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Finding the Fourth Proportional to 7,312.88, 10,092.60 and 5,074.16

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Solution

The fourth proportional to 7,312.88, 10,092.60 and 5,074.16 is: 7,002.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.88 : 10,092.60 = 5,074.16 : x
  2. Step 2: Convert to fraction form
    7,312.88/10,092.60 = 5,074.16/x
  3. Step 3: Cross multiply
    7,312.88x = 10,092.60 × 5,074.16
  4. Step 4: Simplify right side
    7,312.88x = 51,211,467.22
  5. Step 5: Solve for x
    x = 51,211,467.22/7,312.88
  6. Step 6: Final answer
    x = 7,002.91

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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.