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Finding the Fourth Proportional to 19,323.25, 28,984.88 and 4,731.25

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Solution

The fourth proportional to 19,323.25, 28,984.88 and 4,731.25 is: 7,096.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.25 : 28,984.88 = 4,731.25 : x
  2. Step 2: Convert to fraction form
    19,323.25/28,984.88 = 4,731.25/x
  3. Step 3: Cross multiply
    19,323.25x = 28,984.88 × 4,731.25
  4. Step 4: Simplify right side
    19,323.25x = 137,134,713.50
  5. Step 5: Solve for x
    x = 137,134,713.50/19,323.25
  6. Step 6: Final answer
    x = 7,096.88

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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.