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Finding the Fourth Proportional to 84,513.63, 126,583.58 and 57,796.31

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Solution

The fourth proportional to 84,513.63, 126,583.58 and 57,796.31 is: 86,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,513.63 : 126,583.58 = 57,796.31 : x
  2. Step 2: Convert to fraction form
    84,513.63/126,583.58 = 57,796.31/x
  3. Step 3: Cross multiply
    84,513.63x = 126,583.58 × 57,796.31
  4. Step 4: Simplify right side
    84,513.63x = 7,316,063,342.16
  5. Step 5: Solve for x
    x = 7,316,063,342.16/84,513.63
  6. Step 6: Final answer
    x = 86,566.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.