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Finding the Fourth Proportional to 39,336.80, 59,005.20 and 9,754.40

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Solution

The fourth proportional to 39,336.80, 59,005.20 and 9,754.40 is: 14,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,336.80 : 59,005.20 = 9,754.40 : x
  2. Step 2: Convert to fraction form
    39,336.80/59,005.20 = 9,754.40/x
  3. Step 3: Cross multiply
    39,336.80x = 59,005.20 × 9,754.40
  4. Step 4: Simplify right side
    39,336.80x = 575,560,322.88
  5. Step 5: Solve for x
    x = 575,560,322.88/39,336.80
  6. Step 6: Final answer
    x = 14,631.60

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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.