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Finding the Fourth Proportional to 9,913.93, 14,870.89 and 3,339.56

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Solution

The fourth proportional to 9,913.93, 14,870.89 and 3,339.56 is: 5,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.93 : 14,870.89 = 3,339.56 : x
  2. Step 2: Convert to fraction form
    9,913.93/14,870.89 = 3,339.56/x
  3. Step 3: Cross multiply
    9,913.93x = 14,870.89 × 3,339.56
  4. Step 4: Simplify right side
    9,913.93x = 49,662,229.41
  5. Step 5: Solve for x
    x = 49,662,229.41/9,913.93
  6. Step 6: Final answer
    x = 5,009.34

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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.