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Finding the Fourth Proportional to 84,022.80, 115,948.44 and 46,297.20

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Solution

The fourth proportional to 84,022.80, 115,948.44 and 46,297.20 is: 63,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,022.80 : 115,948.44 = 46,297.20 : x
  2. Step 2: Convert to fraction form
    84,022.80/115,948.44 = 46,297.20/x
  3. Step 3: Cross multiply
    84,022.80x = 115,948.44 × 46,297.20
  4. Step 4: Simplify right side
    84,022.80x = 5,368,088,116.37
  5. Step 5: Solve for x
    x = 5,368,088,116.37/84,022.80
  6. Step 6: Final answer
    x = 63,888.47

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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.