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Finding the Fourth Proportional to 56,928.60, 85,239.30 and 56,928.60

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Solution

The fourth proportional to 56,928.60, 85,239.30 and 56,928.60 is: 85,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,928.60 : 85,239.30 = 56,928.60 : x
  2. Step 2: Convert to fraction form
    56,928.60/85,239.30 = 56,928.60/x
  3. Step 3: Cross multiply
    56,928.60x = 85,239.30 × 56,928.60
  4. Step 4: Simplify right side
    56,928.60x = 4,852,554,013.98
  5. Step 5: Solve for x
    x = 4,852,554,013.98/56,928.60
  6. Step 6: Final answer
    x = 85,239.30

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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.