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Finding the Fourth Proportional to 26,989.52, 40,479.68 and 7,263.68

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Solution

The fourth proportional to 26,989.52, 40,479.68 and 7,263.68 is: 10,894.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,989.52 : 40,479.68 = 7,263.68 : x
  2. Step 2: Convert to fraction form
    26,989.52/40,479.68 = 7,263.68/x
  3. Step 3: Cross multiply
    26,989.52x = 40,479.68 × 7,263.68
  4. Step 4: Simplify right side
    26,989.52x = 294,031,442.02
  5. Step 5: Solve for x
    x = 294,031,442.02/26,989.52
  6. Step 6: Final answer
    x = 10,894.28

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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.