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Finding the Fourth Proportional to 45,777.20, 68,614.60 and 26,065.20

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Solution

The fourth proportional to 45,777.20, 68,614.60 and 26,065.20 is: 39,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,777.20 : 68,614.60 = 26,065.20 : x
  2. Step 2: Convert to fraction form
    45,777.20/68,614.60 = 26,065.20/x
  3. Step 3: Cross multiply
    45,777.20x = 68,614.60 × 26,065.20
  4. Step 4: Simplify right side
    45,777.20x = 1,788,453,271.92
  5. Step 5: Solve for x
    x = 1,788,453,271.92/45,777.20
  6. Step 6: Final answer
    x = 39,068.65

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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.