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Finding the Fourth Proportional to 14,230.65, 21,350.76 and 8,959.50

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Solution

The fourth proportional to 14,230.65, 21,350.76 and 8,959.50 is: 13,442.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,230.65 : 21,350.76 = 8,959.50 : x
  2. Step 2: Convert to fraction form
    14,230.65/21,350.76 = 8,959.50/x
  3. Step 3: Cross multiply
    14,230.65x = 21,350.76 × 8,959.50
  4. Step 4: Simplify right side
    14,230.65x = 191,292,134.22
  5. Step 5: Solve for x
    x = 191,292,134.22/14,230.65
  6. Step 6: Final answer
    x = 13,442.26

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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.