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Finding the Fourth Proportional to 84,019.87, 115,947.21 and 46,294.12

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Solution

The fourth proportional to 84,019.87, 115,947.21 and 46,294.12 is: 63,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,019.87 : 115,947.21 = 46,294.12 : x
  2. Step 2: Convert to fraction form
    84,019.87/115,947.21 = 46,294.12/x
  3. Step 3: Cross multiply
    84,019.87x = 115,947.21 × 46,294.12
  4. Step 4: Simplify right side
    84,019.87x = 5,367,674,053.41
  5. Step 5: Solve for x
    x = 5,367,674,053.41/84,019.87
  6. Step 6: Final answer
    x = 63,885.77

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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.