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Finding the Fourth Proportional to 66,803.30, 100,190.55 and 29,363.30

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Solution

The fourth proportional to 66,803.30, 100,190.55 and 29,363.30 is: 44,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,803.30 : 100,190.55 = 29,363.30 : x
  2. Step 2: Convert to fraction form
    66,803.30/100,190.55 = 29,363.30/x
  3. Step 3: Cross multiply
    66,803.30x = 100,190.55 × 29,363.30
  4. Step 4: Simplify right side
    66,803.30x = 2,941,925,176.82
  5. Step 5: Solve for x
    x = 2,941,925,176.82/66,803.30
  6. Step 6: Final answer
    x = 44,038.62

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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.