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Finding the Fourth Proportional to 84,003.48, 115,914.24 and 46,280.16

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Solution

The fourth proportional to 84,003.48, 115,914.24 and 46,280.16 is: 63,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,003.48 : 115,914.24 = 46,280.16 : x
  2. Step 2: Convert to fraction form
    84,003.48/115,914.24 = 46,280.16/x
  3. Step 3: Cross multiply
    84,003.48x = 115,914.24 × 46,280.16
  4. Step 4: Simplify right side
    84,003.48x = 5,364,529,573.48
  5. Step 5: Solve for x
    x = 5,364,529,573.48/84,003.48
  6. Step 6: Final answer
    x = 63,860.80

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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.