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Finding the Fourth Proportional to 19,304.47, 28,955.98 and 6,992.47

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Solution

The fourth proportional to 19,304.47, 28,955.98 and 6,992.47 is: 10,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,304.47 : 28,955.98 = 6,992.47 : x
  2. Step 2: Convert to fraction form
    19,304.47/28,955.98 = 6,992.47/x
  3. Step 3: Cross multiply
    19,304.47x = 28,955.98 × 6,992.47
  4. Step 4: Simplify right side
    19,304.47x = 202,473,821.47
  5. Step 5: Solve for x
    x = 202,473,821.47/19,304.47
  6. Step 6: Final answer
    x = 10,488.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.