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Finding the Fourth Proportional to 13,303.90, 19,958.55 and 6,283.90

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Solution

The fourth proportional to 13,303.90, 19,958.55 and 6,283.90 is: 9,427.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.90 : 19,958.55 = 6,283.90 : x
  2. Step 2: Convert to fraction form
    13,303.90/19,958.55 = 6,283.90/x
  3. Step 3: Cross multiply
    13,303.90x = 19,958.55 × 6,283.90
  4. Step 4: Simplify right side
    13,303.90x = 125,417,532.35
  5. Step 5: Solve for x
    x = 125,417,532.35/13,303.90
  6. Step 6: Final answer
    x = 9,427.13

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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.