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Finding the Fourth Proportional to 7,868.60, 11,802.90 and 2,322.02

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Solution

The fourth proportional to 7,868.60, 11,802.90 and 2,322.02 is: 3,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.60 : 11,802.90 = 2,322.02 : x
  2. Step 2: Convert to fraction form
    7,868.60/11,802.90 = 2,322.02/x
  3. Step 3: Cross multiply
    7,868.60x = 11,802.90 × 2,322.02
  4. Step 4: Simplify right side
    7,868.60x = 27,406,569.86
  5. Step 5: Solve for x
    x = 27,406,569.86/7,868.60
  6. Step 6: Final answer
    x = 3,483.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.