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Finding the Fourth Proportional to 84,008.25, 115,931.39 and 46,283.31

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Solution

The fourth proportional to 84,008.25, 115,931.39 and 46,283.31 is: 63,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,008.25 : 115,931.39 = 46,283.31 : x
  2. Step 2: Convert to fraction form
    84,008.25/115,931.39 = 46,283.31/x
  3. Step 3: Cross multiply
    84,008.25x = 115,931.39 × 46,283.31
  4. Step 4: Simplify right side
    84,008.25x = 5,365,688,230.68
  5. Step 5: Solve for x
    x = 5,365,688,230.68/84,008.25
  6. Step 6: Final answer
    x = 63,870.97

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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.