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Finding the Fourth Proportional to 17,879.76, 26,699.28 and 14,599.32

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Solution

The fourth proportional to 17,879.76, 26,699.28 and 14,599.32 is: 21,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.76 : 26,699.28 = 14,599.32 : x
  2. Step 2: Convert to fraction form
    17,879.76/26,699.28 = 14,599.32/x
  3. Step 3: Cross multiply
    17,879.76x = 26,699.28 × 14,599.32
  4. Step 4: Simplify right side
    17,879.76x = 389,791,332.49
  5. Step 5: Solve for x
    x = 389,791,332.49/17,879.76
  6. Step 6: Final answer
    x = 21,800.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.