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Finding the Fourth Proportional to 52,622.72, 72,620.78 and 28,750.68

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Solution

The fourth proportional to 52,622.72, 72,620.78 and 28,750.68 is: 39,676.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,622.72 : 72,620.78 = 28,750.68 : x
  2. Step 2: Convert to fraction form
    52,622.72/72,620.78 = 28,750.68/x
  3. Step 3: Cross multiply
    52,622.72x = 72,620.78 × 28,750.68
  4. Step 4: Simplify right side
    52,622.72x = 2,087,896,807.13
  5. Step 5: Solve for x
    x = 2,087,896,807.13/52,622.72
  6. Step 6: Final answer
    x = 39,676.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.