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Finding the Fourth Proportional to 19,507.59, 26,913.19 and 12,796.94

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Solution

The fourth proportional to 19,507.59, 26,913.19 and 12,796.94 is: 17,655.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,507.59 : 26,913.19 = 12,796.94 : x
  2. Step 2: Convert to fraction form
    19,507.59/26,913.19 = 12,796.94/x
  3. Step 3: Cross multiply
    19,507.59x = 26,913.19 × 12,796.94
  4. Step 4: Simplify right side
    19,507.59x = 344,406,413.65
  5. Step 5: Solve for x
    x = 344,406,413.65/19,507.59
  6. Step 6: Final answer
    x = 17,655.00

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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.