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Finding the Fourth Proportional to 74,676.30, 112,014.45 and 47,028.30

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Solution

The fourth proportional to 74,676.30, 112,014.45 and 47,028.30 is: 70,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,676.30 : 112,014.45 = 47,028.30 : x
  2. Step 2: Convert to fraction form
    74,676.30/112,014.45 = 47,028.30/x
  3. Step 3: Cross multiply
    74,676.30x = 112,014.45 × 47,028.30
  4. Step 4: Simplify right side
    74,676.30x = 5,267,849,158.94
  5. Step 5: Solve for x
    x = 5,267,849,158.94/74,676.30
  6. Step 6: Final answer
    x = 70,542.45

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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.