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Finding the Fourth Proportional to 70,710.54, 97,580.91 and 38,881.50

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Solution

The fourth proportional to 70,710.54, 97,580.91 and 38,881.50 is: 53,656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,710.54 : 97,580.91 = 38,881.50 : x
  2. Step 2: Convert to fraction form
    70,710.54/97,580.91 = 38,881.50/x
  3. Step 3: Cross multiply
    70,710.54x = 97,580.91 × 38,881.50
  4. Step 4: Simplify right side
    70,710.54x = 3,794,092,152.17
  5. Step 5: Solve for x
    x = 3,794,092,152.17/70,710.54
  6. Step 6: Final answer
    x = 53,656.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.