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Finding the Fourth Proportional to 70,899.53, 97,843.41 and 39,070.48

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Solution

The fourth proportional to 70,899.53, 97,843.41 and 39,070.48 is: 53,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,899.53 : 97,843.41 = 39,070.48 : x
  2. Step 2: Convert to fraction form
    70,899.53/97,843.41 = 39,070.48/x
  3. Step 3: Cross multiply
    70,899.53x = 97,843.41 × 39,070.48
  4. Step 4: Simplify right side
    70,899.53x = 3,822,788,993.54
  5. Step 5: Solve for x
    x = 3,822,788,993.54/70,899.53
  6. Step 6: Final answer
    x = 53,918.40

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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.