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Finding the Fourth Proportional to 30,671.70, 45,783.71 and 26,317.14

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Solution

The fourth proportional to 30,671.70, 45,783.71 and 26,317.14 is: 39,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,671.70 : 45,783.71 = 26,317.14 : x
  2. Step 2: Convert to fraction form
    30,671.70/45,783.71 = 26,317.14/x
  3. Step 3: Cross multiply
    30,671.70x = 45,783.71 × 26,317.14
  4. Step 4: Simplify right side
    30,671.70x = 1,204,896,305.79
  5. Step 5: Solve for x
    x = 1,204,896,305.79/30,671.70
  6. Step 6: Final answer
    x = 39,283.65

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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.