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Finding the Fourth Proportional to 70,884.99, 97,817.42 and 39,051.38

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Solution

The fourth proportional to 70,884.99, 97,817.42 and 39,051.38 is: 53,888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,884.99 : 97,817.42 = 39,051.38 : x
  2. Step 2: Convert to fraction form
    70,884.99/97,817.42 = 39,051.38/x
  3. Step 3: Cross multiply
    70,884.99x = 97,817.42 × 39,051.38
  4. Step 4: Simplify right side
    70,884.99x = 3,819,905,581.21
  5. Step 5: Solve for x
    x = 3,819,905,581.21/70,884.99
  6. Step 6: Final answer
    x = 53,888.78

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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.