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Finding the Fourth Proportional to 7,907.35, 10,903.25 and 5,390.93

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Solution

The fourth proportional to 7,907.35, 10,903.25 and 5,390.93 is: 7,433.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.35 : 10,903.25 = 5,390.93 : x
  2. Step 2: Convert to fraction form
    7,907.35/10,903.25 = 5,390.93/x
  3. Step 3: Cross multiply
    7,907.35x = 10,903.25 × 5,390.93
  4. Step 4: Simplify right side
    7,907.35x = 58,778,657.52
  5. Step 5: Solve for x
    x = 58,778,657.52/7,907.35
  6. Step 6: Final answer
    x = 7,433.42

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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.