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Finding the Fourth Proportional to 19,303.68, 28,940.16 and 8,352

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Solution

The fourth proportional to 19,303.68, 28,940.16 and 8,352 is: 12,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.68 : 28,940.16 = 8,352 : x
  2. Step 2: Convert to fraction form
    19,303.68/28,940.16 = 8,352/x
  3. Step 3: Cross multiply
    19,303.68x = 28,940.16 × 8,352
  4. Step 4: Simplify right side
    19,303.68x = 241,708,216.32
  5. Step 5: Solve for x
    x = 241,708,216.32/19,303.68
  6. Step 6: Final answer
    x = 12,521.35

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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.