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Finding the Fourth Proportional to 28,461.59, 42,678.26 and 9,736.32

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Solution

The fourth proportional to 28,461.59, 42,678.26 and 9,736.32 is: 14,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.59 : 42,678.26 = 9,736.32 : x
  2. Step 2: Convert to fraction form
    28,461.59/42,678.26 = 9,736.32/x
  3. Step 3: Cross multiply
    28,461.59x = 42,678.26 × 9,736.32
  4. Step 4: Simplify right side
    28,461.59x = 415,529,147.72
  5. Step 5: Solve for x
    x = 415,529,147.72/28,461.59
  6. Step 6: Final answer
    x = 14,599.65

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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.