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Finding the Fourth Proportional to 19,605.71, 26,952.15 and 16,870.08

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Solution

The fourth proportional to 19,605.71, 26,952.15 and 16,870.08 is: 23,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.71 : 26,952.15 = 16,870.08 : x
  2. Step 2: Convert to fraction form
    19,605.71/26,952.15 = 16,870.08/x
  3. Step 3: Cross multiply
    19,605.71x = 26,952.15 × 16,870.08
  4. Step 4: Simplify right side
    19,605.71x = 454,684,825.60
  5. Step 5: Solve for x
    x = 454,684,825.60/19,605.71
  6. Step 6: Final answer
    x = 23,191.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.