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Finding the Fourth Proportional to 84,038.71, 115,973.44 and 45,798.27

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Solution

The fourth proportional to 84,038.71, 115,973.44 and 45,798.27 is: 63,201.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,038.71 : 115,973.44 = 45,798.27 : x
  2. Step 2: Convert to fraction form
    84,038.71/115,973.44 = 45,798.27/x
  3. Step 3: Cross multiply
    84,038.71x = 115,973.44 × 45,798.27
  4. Step 4: Simplify right side
    84,038.71x = 5,311,382,917.95
  5. Step 5: Solve for x
    x = 5,311,382,917.95/84,038.71
  6. Step 6: Final answer
    x = 63,201.62

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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.