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Finding the Fourth Proportional to 57,775.10, 79,728.15 and 32,281.67

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Solution

The fourth proportional to 57,775.10, 79,728.15 and 32,281.67 is: 44,547.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,775.10 : 79,728.15 = 32,281.67 : x
  2. Step 2: Convert to fraction form
    57,775.10/79,728.15 = 32,281.67/x
  3. Step 3: Cross multiply
    57,775.10x = 79,728.15 × 32,281.67
  4. Step 4: Simplify right side
    57,775.10x = 2,573,758,134.98
  5. Step 5: Solve for x
    x = 2,573,758,134.98/57,775.10
  6. Step 6: Final answer
    x = 44,547.88

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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.