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Finding the Fourth Proportional to 71,636.40, 107,416.80 and 24,235.20

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Solution

The fourth proportional to 71,636.40, 107,416.80 and 24,235.20 is: 36,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,636.40 : 107,416.80 = 24,235.20 : x
  2. Step 2: Convert to fraction form
    71,636.40/107,416.80 = 24,235.20/x
  3. Step 3: Cross multiply
    71,636.40x = 107,416.80 × 24,235.20
  4. Step 4: Simplify right side
    71,636.40x = 2,603,267,631.36
  5. Step 5: Solve for x
    x = 2,603,267,631.36/71,636.40
  6. Step 6: Final answer
    x = 36,340.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.