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Finding the Fourth Proportional to 84,813.52, 127,205.88 and 22,490.32

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Solution

The fourth proportional to 84,813.52, 127,205.88 and 22,490.32 is: 33,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,813.52 : 127,205.88 = 22,490.32 : x
  2. Step 2: Convert to fraction form
    84,813.52/127,205.88 = 22,490.32/x
  3. Step 3: Cross multiply
    84,813.52x = 127,205.88 × 22,490.32
  4. Step 4: Simplify right side
    84,813.52x = 2,860,900,947.08
  5. Step 5: Solve for x
    x = 2,860,900,947.08/84,813.52
  6. Step 6: Final answer
    x = 33,731.66

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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.