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Finding the Fourth Proportional to 9,353.18, 12,907.19 and 5,374.19

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Solution

The fourth proportional to 9,353.18, 12,907.19 and 5,374.19 is: 7,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353.18 : 12,907.19 = 5,374.19 : x
  2. Step 2: Convert to fraction form
    9,353.18/12,907.19 = 5,374.19/x
  3. Step 3: Cross multiply
    9,353.18x = 12,907.19 × 5,374.19
  4. Step 4: Simplify right side
    9,353.18x = 69,365,600.02
  5. Step 5: Solve for x
    x = 69,365,600.02/9,353.18
  6. Step 6: Final answer
    x = 7,416.26

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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.