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Finding the Fourth Proportional to 19,792.99, 27,313.86 and 10,840.87

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Solution

The fourth proportional to 19,792.99, 27,313.86 and 10,840.87 is: 14,960.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.99 : 27,313.86 = 10,840.87 : x
  2. Step 2: Convert to fraction form
    19,792.99/27,313.86 = 10,840.87/x
  3. Step 3: Cross multiply
    19,792.99x = 27,313.86 × 10,840.87
  4. Step 4: Simplify right side
    19,792.99x = 296,106,005.46
  5. Step 5: Solve for x
    x = 296,106,005.46/19,792.99
  6. Step 6: Final answer
    x = 14,960.15

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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.