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Finding the Fourth Proportional to 9,928.32, 14,894.63 and 2,908.92

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Solution

The fourth proportional to 9,928.32, 14,894.63 and 2,908.92 is: 4,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.32 : 14,894.63 = 2,908.92 : x
  2. Step 2: Convert to fraction form
    9,928.32/14,894.63 = 2,908.92/x
  3. Step 3: Cross multiply
    9,928.32x = 14,894.63 × 2,908.92
  4. Step 4: Simplify right side
    9,928.32x = 43,327,287.10
  5. Step 5: Solve for x
    x = 43,327,287.10/9,928.32
  6. Step 6: Final answer
    x = 4,364.01

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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.