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Finding the Fourth Proportional to 84,038.50, 115,973.13 and 46,313.56

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Solution

The fourth proportional to 84,038.50, 115,973.13 and 46,313.56 is: 63,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,038.50 : 115,973.13 = 46,313.56 : x
  2. Step 2: Convert to fraction form
    84,038.50/115,973.13 = 46,313.56/x
  3. Step 3: Cross multiply
    84,038.50x = 115,973.13 × 46,313.56
  4. Step 4: Simplify right side
    84,038.50x = 5,371,128,514.64
  5. Step 5: Solve for x
    x = 5,371,128,514.64/84,038.50
  6. Step 6: Final answer
    x = 63,912.71

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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.