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Finding the Fourth Proportional to 70,817.88, 97,738.02 and 45,740.28

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Solution

The fourth proportional to 70,817.88, 97,738.02 and 45,740.28 is: 63,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,817.88 : 97,738.02 = 45,740.28 : x
  2. Step 2: Convert to fraction form
    70,817.88/97,738.02 = 45,740.28/x
  3. Step 3: Cross multiply
    70,817.88x = 97,738.02 × 45,740.28
  4. Step 4: Simplify right side
    70,817.88x = 4,470,564,401.45
  5. Step 5: Solve for x
    x = 4,470,564,401.45/70,817.88
  6. Step 6: Final answer
    x = 63,127.62

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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.