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Finding the Fourth Proportional to 70,658.45, 97,508.37 and 40,443.63

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Solution

The fourth proportional to 70,658.45, 97,508.37 and 40,443.63 is: 55,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,658.45 : 97,508.37 = 40,443.63 : x
  2. Step 2: Convert to fraction form
    70,658.45/97,508.37 = 40,443.63/x
  3. Step 3: Cross multiply
    70,658.45x = 97,508.37 × 40,443.63
  4. Step 4: Simplify right side
    70,658.45x = 3,943,592,438.18
  5. Step 5: Solve for x
    x = 3,943,592,438.18/70,658.45
  6. Step 6: Final answer
    x = 55,812.04

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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.