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Finding the Fourth Proportional to 81,862.92, 112,969.80 and 46,053.18

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Solution

The fourth proportional to 81,862.92, 112,969.80 and 46,053.18 is: 63,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,862.92 : 112,969.80 = 46,053.18 : x
  2. Step 2: Convert to fraction form
    81,862.92/112,969.80 = 46,053.18/x
  3. Step 3: Cross multiply
    81,862.92x = 112,969.80 × 46,053.18
  4. Step 4: Simplify right side
    81,862.92x = 5,202,618,533.96
  5. Step 5: Solve for x
    x = 5,202,618,533.96/81,862.92
  6. Step 6: Final answer
    x = 63,552.81

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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.