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Finding the Fourth Proportional to 19,607.94, 27,050.13 and 11,645.64

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Solution

The fourth proportional to 19,607.94, 27,050.13 and 11,645.64 is: 16,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,607.94 : 27,050.13 = 11,645.64 : x
  2. Step 2: Convert to fraction form
    19,607.94/27,050.13 = 11,645.64/x
  3. Step 3: Cross multiply
    19,607.94x = 27,050.13 × 11,645.64
  4. Step 4: Simplify right side
    19,607.94x = 315,016,075.93
  5. Step 5: Solve for x
    x = 315,016,075.93/19,607.94
  6. Step 6: Final answer
    x = 16,065.74

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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.