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Finding the Fourth Proportional to 14,192.55, 19,585.71 and 7,904.93

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Solution

The fourth proportional to 14,192.55, 19,585.71 and 7,904.93 is: 10,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,192.55 : 19,585.71 = 7,904.93 : x
  2. Step 2: Convert to fraction form
    14,192.55/19,585.71 = 7,904.93/x
  3. Step 3: Cross multiply
    14,192.55x = 19,585.71 × 7,904.93
  4. Step 4: Simplify right side
    14,192.55x = 154,823,568.62
  5. Step 5: Solve for x
    x = 154,823,568.62/14,192.55
  6. Step 6: Final answer
    x = 10,908.79

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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.