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Finding the Fourth Proportional to 14,959.50, 22,393.89 and 9,989.34

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Solution

The fourth proportional to 14,959.50, 22,393.89 and 9,989.34 is: 14,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.50 : 22,393.89 = 9,989.34 : x
  2. Step 2: Convert to fraction form
    14,959.50/22,393.89 = 9,989.34/x
  3. Step 3: Cross multiply
    14,959.50x = 22,393.89 × 9,989.34
  4. Step 4: Simplify right side
    14,959.50x = 223,700,181.13
  5. Step 5: Solve for x
    x = 223,700,181.13/14,959.50
  6. Step 6: Final answer
    x = 14,953.72

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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.