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Finding the Fourth Proportional to 26,569.76, 39,830.02 and 11,770.79

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Solution

The fourth proportional to 26,569.76, 39,830.02 and 11,770.79 is: 17,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,569.76 : 39,830.02 = 11,770.79 : x
  2. Step 2: Convert to fraction form
    26,569.76/39,830.02 = 11,770.79/x
  3. Step 3: Cross multiply
    26,569.76x = 39,830.02 × 11,770.79
  4. Step 4: Simplify right side
    26,569.76x = 468,830,801.12
  5. Step 5: Solve for x
    x = 468,830,801.12/26,569.76
  6. Step 6: Final answer
    x = 17,645.28

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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.