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Finding the Fourth Proportional to 9,993.69, 14,987.70 and 2,973.42

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Solution

The fourth proportional to 9,993.69, 14,987.70 and 2,973.42 is: 4,459.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.69 : 14,987.70 = 2,973.42 : x
  2. Step 2: Convert to fraction form
    9,993.69/14,987.70 = 2,973.42/x
  3. Step 3: Cross multiply
    9,993.69x = 14,987.70 × 2,973.42
  4. Step 4: Simplify right side
    9,993.69x = 44,564,726.93
  5. Step 5: Solve for x
    x = 44,564,726.93/9,993.69
  6. Step 6: Final answer
    x = 4,459.29

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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.