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Finding the Fourth Proportional to 7,136.64, 9,848.16 and 4,341.60

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Solution

The fourth proportional to 7,136.64, 9,848.16 and 4,341.60 is: 5,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.64 : 9,848.16 = 4,341.60 : x
  2. Step 2: Convert to fraction form
    7,136.64/9,848.16 = 4,341.60/x
  3. Step 3: Cross multiply
    7,136.64x = 9,848.16 × 4,341.60
  4. Step 4: Simplify right side
    7,136.64x = 42,756,771.46
  5. Step 5: Solve for x
    x = 42,756,771.46/7,136.64
  6. Step 6: Final answer
    x = 5,991.16

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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.