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Finding the Fourth Proportional to 12,975.99, 19,392.87 and 9,473.37

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Solution

The fourth proportional to 12,975.99, 19,392.87 and 9,473.37 is: 14,158.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.99 : 19,392.87 = 9,473.37 : x
  2. Step 2: Convert to fraction form
    12,975.99/19,392.87 = 9,473.37/x
  3. Step 3: Cross multiply
    12,975.99x = 19,392.87 × 9,473.37
  4. Step 4: Simplify right side
    12,975.99x = 183,715,832.87
  5. Step 5: Solve for x
    x = 183,715,832.87/12,975.99
  6. Step 6: Final answer
    x = 14,158.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.