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Finding the Fourth Proportional to 70,666.71, 97,520.66 and 38,401.32

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Solution

The fourth proportional to 70,666.71, 97,520.66 and 38,401.32 is: 52,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,666.71 : 97,520.66 = 38,401.32 : x
  2. Step 2: Convert to fraction form
    70,666.71/97,520.66 = 38,401.32/x
  3. Step 3: Cross multiply
    70,666.71x = 97,520.66 × 38,401.32
  4. Step 4: Simplify right side
    70,666.71x = 3,744,922,388.97
  5. Step 5: Solve for x
    x = 3,744,922,388.97/70,666.71
  6. Step 6: Final answer
    x = 52,994.15

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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.