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Finding the Fourth Proportional to 69,828.63, 96,347.10 and 39,606.99

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Solution

The fourth proportional to 69,828.63, 96,347.10 and 39,606.99 is: 54,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,828.63 : 96,347.10 = 39,606.99 : x
  2. Step 2: Convert to fraction form
    69,828.63/96,347.10 = 39,606.99/x
  3. Step 3: Cross multiply
    69,828.63x = 96,347.10 × 39,606.99
  4. Step 4: Simplify right side
    69,828.63x = 3,816,018,626.23
  5. Step 5: Solve for x
    x = 3,816,018,626.23/69,828.63
  6. Step 6: Final answer
    x = 54,648.34

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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.