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Finding the Fourth Proportional to 19,798.61, 27,322.08 and 11,840.84

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Solution

The fourth proportional to 19,798.61, 27,322.08 and 11,840.84 is: 16,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,798.61 : 27,322.08 = 11,840.84 : x
  2. Step 2: Convert to fraction form
    19,798.61/27,322.08 = 11,840.84/x
  3. Step 3: Cross multiply
    19,798.61x = 27,322.08 × 11,840.84
  4. Step 4: Simplify right side
    19,798.61x = 323,516,336.77
  5. Step 5: Solve for x
    x = 323,516,336.77/19,798.61
  6. Step 6: Final answer
    x = 16,340.35

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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.