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Finding the Fourth Proportional to 73,402.31, 101,295.29 and 39,868.31

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Solution

The fourth proportional to 73,402.31, 101,295.29 and 39,868.31 is: 55,018.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,402.31 : 101,295.29 = 39,868.31 : x
  2. Step 2: Convert to fraction form
    73,402.31/101,295.29 = 39,868.31/x
  3. Step 3: Cross multiply
    73,402.31x = 101,295.29 × 39,868.31
  4. Step 4: Simplify right side
    73,402.31x = 4,038,472,376.17
  5. Step 5: Solve for x
    x = 4,038,472,376.17/73,402.31
  6. Step 6: Final answer
    x = 55,018.33

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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.