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Finding the Fourth Proportional to 70,898.03, 97,838.47 and 40,270.92

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Solution

The fourth proportional to 70,898.03, 97,838.47 and 40,270.92 is: 55,573.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,898.03 : 97,838.47 = 40,270.92 : x
  2. Step 2: Convert to fraction form
    70,898.03/97,838.47 = 40,270.92/x
  3. Step 3: Cross multiply
    70,898.03x = 97,838.47 × 40,270.92
  4. Step 4: Simplify right side
    70,898.03x = 3,940,045,198.29
  5. Step 5: Solve for x
    x = 3,940,045,198.29/70,898.03
  6. Step 6: Final answer
    x = 55,573.41

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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.