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Finding the Fourth Proportional to 70,676.31, 97,531.66 and 38,410.17

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Solution

The fourth proportional to 70,676.31, 97,531.66 and 38,410.17 is: 53,005.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,676.31 : 97,531.66 = 38,410.17 : x
  2. Step 2: Convert to fraction form
    70,676.31/97,531.66 = 38,410.17/x
  3. Step 3: Cross multiply
    70,676.31x = 97,531.66 × 38,410.17
  4. Step 4: Simplify right side
    70,676.31x = 3,746,207,323.25
  5. Step 5: Solve for x
    x = 3,746,207,323.25/70,676.31
  6. Step 6: Final answer
    x = 53,005.13

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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.