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Finding the Fourth Proportional to 14,303.95, 21,455.34 and 5,981.83

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Solution

The fourth proportional to 14,303.95, 21,455.34 and 5,981.83 is: 8,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.95 : 21,455.34 = 5,981.83 : x
  2. Step 2: Convert to fraction form
    14,303.95/21,455.34 = 5,981.83/x
  3. Step 3: Cross multiply
    14,303.95x = 21,455.34 × 5,981.83
  4. Step 4: Simplify right side
    14,303.95x = 128,342,196.47
  5. Step 5: Solve for x
    x = 128,342,196.47/14,303.95
  6. Step 6: Final answer
    x = 8,972.50

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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.