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Finding the Fourth Proportional to 17,678.76, 26,495.51 and 8,298.05

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Solution

The fourth proportional to 17,678.76, 26,495.51 and 8,298.05 is: 12,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,678.76 : 26,495.51 = 8,298.05 : x
  2. Step 2: Convert to fraction form
    17,678.76/26,495.51 = 8,298.05/x
  3. Step 3: Cross multiply
    17,678.76x = 26,495.51 × 8,298.05
  4. Step 4: Simplify right side
    17,678.76x = 219,860,892.79
  5. Step 5: Solve for x
    x = 219,860,892.79/17,678.76
  6. Step 6: Final answer
    x = 12,436.45

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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.