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Finding the Fourth Proportional to 7,094.36, 9,783.75 and 5,678.18

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Solution

The fourth proportional to 7,094.36, 9,783.75 and 5,678.18 is: 7,830.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,094.36 : 9,783.75 = 5,678.18 : x
  2. Step 2: Convert to fraction form
    7,094.36/9,783.75 = 5,678.18/x
  3. Step 3: Cross multiply
    7,094.36x = 9,783.75 × 5,678.18
  4. Step 4: Simplify right side
    7,094.36x = 55,553,902.64
  5. Step 5: Solve for x
    x = 55,553,902.64/7,094.36
  6. Step 6: Final answer
    x = 7,830.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.