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Finding the Fourth Proportional to 19,152.88, 28,723.74 and 7,463.32

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Solution

The fourth proportional to 19,152.88, 28,723.74 and 7,463.32 is: 11,192.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.88 : 28,723.74 = 7,463.32 : x
  2. Step 2: Convert to fraction form
    19,152.88/28,723.74 = 7,463.32/x
  3. Step 3: Cross multiply
    19,152.88x = 28,723.74 × 7,463.32
  4. Step 4: Simplify right side
    19,152.88x = 214,374,463.22
  5. Step 5: Solve for x
    x = 214,374,463.22/19,152.88
  6. Step 6: Final answer
    x = 11,192.81

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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.