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Finding the Fourth Proportional to 7,168.62, 9,901.08 and 6,538.05

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Solution

The fourth proportional to 7,168.62, 9,901.08 and 6,538.05 is: 9,030.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.62 : 9,901.08 = 6,538.05 : x
  2. Step 2: Convert to fraction form
    7,168.62/9,901.08 = 6,538.05/x
  3. Step 3: Cross multiply
    7,168.62x = 9,901.08 × 6,538.05
  4. Step 4: Simplify right side
    7,168.62x = 64,733,756.09
  5. Step 5: Solve for x
    x = 64,733,756.09/7,168.62
  6. Step 6: Final answer
    x = 9,030.16

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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.