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Finding the Fourth Proportional to 52,752.60, 79,129.70 and 17,213.76

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Solution

The fourth proportional to 52,752.60, 79,129.70 and 17,213.76 is: 25,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,752.60 : 79,129.70 = 17,213.76 : x
  2. Step 2: Convert to fraction form
    52,752.60/79,129.70 = 17,213.76/x
  3. Step 3: Cross multiply
    52,752.60x = 79,129.70 × 17,213.76
  4. Step 4: Simplify right side
    52,752.60x = 1,362,119,664.67
  5. Step 5: Solve for x
    x = 1,362,119,664.67/52,752.60
  6. Step 6: Final answer
    x = 25,820.90

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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.