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Finding the Fourth Proportional to 12,465.79, 18,698.63 and 5,068.56

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Solution

The fourth proportional to 12,465.79, 18,698.63 and 5,068.56 is: 7,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.79 : 18,698.63 = 5,068.56 : x
  2. Step 2: Convert to fraction form
    12,465.79/18,698.63 = 5,068.56/x
  3. Step 3: Cross multiply
    12,465.79x = 18,698.63 × 5,068.56
  4. Step 4: Simplify right side
    12,465.79x = 94,775,128.07
  5. Step 5: Solve for x
    x = 94,775,128.07/12,465.79
  6. Step 6: Final answer
    x = 7,602.82

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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.