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Finding the Fourth Proportional to 71,327.51, 98,433.51 and 39,063.50

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Solution

The fourth proportional to 71,327.51, 98,433.51 and 39,063.50 is: 53,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,327.51 : 98,433.51 = 39,063.50 : x
  2. Step 2: Convert to fraction form
    71,327.51/98,433.51 = 39,063.50/x
  3. Step 3: Cross multiply
    71,327.51x = 98,433.51 × 39,063.50
  4. Step 4: Simplify right side
    71,327.51x = 3,845,157,417.89
  5. Step 5: Solve for x
    x = 3,845,157,417.89/71,327.51
  6. Step 6: Final answer
    x = 53,908.48

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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.