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Finding the Fourth Proportional to 9,343.54, 12,880.69 and 7,350.64

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Solution

The fourth proportional to 9,343.54, 12,880.69 and 7,350.64 is: 10,133.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.54 : 12,880.69 = 7,350.64 : x
  2. Step 2: Convert to fraction form
    9,343.54/12,880.69 = 7,350.64/x
  3. Step 3: Cross multiply
    9,343.54x = 12,880.69 × 7,350.64
  4. Step 4: Simplify right side
    9,343.54x = 94,681,315.14
  5. Step 5: Solve for x
    x = 94,681,315.14/9,343.54
  6. Step 6: Final answer
    x = 10,133.35

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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.