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Finding the Fourth Proportional to 28,666.80, 42,927.30 and 27,354.60

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Solution

The fourth proportional to 28,666.80, 42,927.30 and 27,354.60 is: 40,962.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.80 : 42,927.30 = 27,354.60 : x
  2. Step 2: Convert to fraction form
    28,666.80/42,927.30 = 27,354.60/x
  3. Step 3: Cross multiply
    28,666.80x = 42,927.30 × 27,354.60
  4. Step 4: Simplify right side
    28,666.80x = 1,174,259,120.58
  5. Step 5: Solve for x
    x = 1,174,259,120.58/28,666.80
  6. Step 6: Final answer
    x = 40,962.34

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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.