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Finding the Fourth Proportional to 70,580.66, 97,395.50 and 38,748.46

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Solution

The fourth proportional to 70,580.66, 97,395.50 and 38,748.46 is: 53,469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,580.66 : 97,395.50 = 38,748.46 : x
  2. Step 2: Convert to fraction form
    70,580.66/97,395.50 = 38,748.46/x
  3. Step 3: Cross multiply
    70,580.66x = 97,395.50 × 38,748.46
  4. Step 4: Simplify right side
    70,580.66x = 3,773,925,635.93
  5. Step 5: Solve for x
    x = 3,773,925,635.93/70,580.66
  6. Step 6: Final answer
    x = 53,469.68

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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.