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Finding the Fourth Proportional to 9,928.47, 14,893.06 and 4,995.42

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Solution

The fourth proportional to 9,928.47, 14,893.06 and 4,995.42 is: 7,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.47 : 14,893.06 = 4,995.42 : x
  2. Step 2: Convert to fraction form
    9,928.47/14,893.06 = 4,995.42/x
  3. Step 3: Cross multiply
    9,928.47x = 14,893.06 × 4,995.42
  4. Step 4: Simplify right side
    9,928.47x = 74,397,064.81
  5. Step 5: Solve for x
    x = 74,397,064.81/9,928.47
  6. Step 6: Final answer
    x = 7,493.31

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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.