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Finding the Fourth Proportional to 26,323.80, 39,485.70 and 25,886.40

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Solution

The fourth proportional to 26,323.80, 39,485.70 and 25,886.40 is: 38,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,323.80 : 39,485.70 = 25,886.40 : x
  2. Step 2: Convert to fraction form
    26,323.80/39,485.70 = 25,886.40/x
  3. Step 3: Cross multiply
    26,323.80x = 39,485.70 × 25,886.40
  4. Step 4: Simplify right side
    26,323.80x = 1,022,142,624.48
  5. Step 5: Solve for x
    x = 1,022,142,624.48/26,323.80
  6. Step 6: Final answer
    x = 38,829.60

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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.