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Finding the Fourth Proportional to 7,830.01, 10,805.57 and 4,293.01

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Solution

The fourth proportional to 7,830.01, 10,805.57 and 4,293.01 is: 5,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.01 : 10,805.57 = 4,293.01 : x
  2. Step 2: Convert to fraction form
    7,830.01/10,805.57 = 4,293.01/x
  3. Step 3: Cross multiply
    7,830.01x = 10,805.57 × 4,293.01
  4. Step 4: Simplify right side
    7,830.01x = 46,388,420.07
  5. Step 5: Solve for x
    x = 46,388,420.07/7,830.01
  6. Step 6: Final answer
    x = 5,924.44

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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.