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Finding the Fourth Proportional to 70,695, 97,510.05 and 48,021.30

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Solution

The fourth proportional to 70,695, 97,510.05 and 48,021.30 is: 66,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,695 : 97,510.05 = 48,021.30 : x
  2. Step 2: Convert to fraction form
    70,695/97,510.05 = 48,021.30/x
  3. Step 3: Cross multiply
    70,695x = 97,510.05 × 48,021.30
  4. Step 4: Simplify right side
    70,695x = 4,682,559,364.07
  5. Step 5: Solve for x
    x = 4,682,559,364.07/70,695
  6. Step 6: Final answer
    x = 66,236.08

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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.