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Finding the Fourth Proportional to 71,203.05, 98,262.14 and 39,373.07

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Solution

The fourth proportional to 71,203.05, 98,262.14 and 39,373.07 is: 54,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,203.05 : 98,262.14 = 39,373.07 : x
  2. Step 2: Convert to fraction form
    71,203.05/98,262.14 = 39,373.07/x
  3. Step 3: Cross multiply
    71,203.05x = 98,262.14 × 39,373.07
  4. Step 4: Simplify right side
    71,203.05x = 3,868,881,428.39
  5. Step 5: Solve for x
    x = 3,868,881,428.39/71,203.05
  6. Step 6: Final answer
    x = 54,335.89

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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.