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Finding the Fourth Proportional to 28,992.46, 43,492.74 and 9,264.28

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Solution

The fourth proportional to 28,992.46, 43,492.74 and 9,264.28 is: 13,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.46 : 43,492.74 = 9,264.28 : x
  2. Step 2: Convert to fraction form
    28,992.46/43,492.74 = 9,264.28/x
  3. Step 3: Cross multiply
    28,992.46x = 43,492.74 × 9,264.28
  4. Step 4: Simplify right side
    28,992.46x = 402,928,921.33
  5. Step 5: Solve for x
    x = 402,928,921.33/28,992.46
  6. Step 6: Final answer
    x = 13,897.71

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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.