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Finding the Fourth Proportional to 84,369, 116,431.65 and 46,645.68

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Solution

The fourth proportional to 84,369, 116,431.65 and 46,645.68 is: 64,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,369 : 116,431.65 = 46,645.68 : x
  2. Step 2: Convert to fraction form
    84,369/116,431.65 = 46,645.68/x
  3. Step 3: Cross multiply
    84,369x = 116,431.65 × 46,645.68
  4. Step 4: Simplify right side
    84,369x = 5,431,033,487.77
  5. Step 5: Solve for x
    x = 5,431,033,487.77/84,369
  6. Step 6: Final answer
    x = 64,372.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.