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Finding the Fourth Proportional to 19,056.77, 28,585.16 and 7,957.41

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Solution

The fourth proportional to 19,056.77, 28,585.16 and 7,957.41 is: 11,936.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,056.77 : 28,585.16 = 7,957.41 : x
  2. Step 2: Convert to fraction form
    19,056.77/28,585.16 = 7,957.41/x
  3. Step 3: Cross multiply
    19,056.77x = 28,585.16 × 7,957.41
  4. Step 4: Simplify right side
    19,056.77x = 227,463,838.04
  5. Step 5: Solve for x
    x = 227,463,838.04/19,056.77
  6. Step 6: Final answer
    x = 11,936.12

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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.