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Finding the Fourth Proportional to 14,313.54, 19,758.87 and 13,416.87

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Solution

The fourth proportional to 14,313.54, 19,758.87 and 13,416.87 is: 18,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,313.54 : 19,758.87 = 13,416.87 : x
  2. Step 2: Convert to fraction form
    14,313.54/19,758.87 = 13,416.87/x
  3. Step 3: Cross multiply
    14,313.54x = 19,758.87 × 13,416.87
  4. Step 4: Simplify right side
    14,313.54x = 265,102,190.14
  5. Step 5: Solve for x
    x = 265,102,190.14/14,313.54
  6. Step 6: Final answer
    x = 18,521.08

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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.