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Finding the Fourth Proportional to 14,396.94, 21,590.55 and 5,629.50

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Solution

The fourth proportional to 14,396.94, 21,590.55 and 5,629.50 is: 8,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,396.94 : 21,590.55 = 5,629.50 : x
  2. Step 2: Convert to fraction form
    14,396.94/21,590.55 = 5,629.50/x
  3. Step 3: Cross multiply
    14,396.94x = 21,590.55 × 5,629.50
  4. Step 4: Simplify right side
    14,396.94x = 121,544,001.23
  5. Step 5: Solve for x
    x = 121,544,001.23/14,396.94
  6. Step 6: Final answer
    x = 8,442.35

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1.5x scale

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.