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Finding the Fourth Proportional to 51,354.05, 70,868.70 and 28,693.10

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Solution

The fourth proportional to 51,354.05, 70,868.70 and 28,693.10 is: 39,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,354.05 : 70,868.70 = 28,693.10 : x
  2. Step 2: Convert to fraction form
    51,354.05/70,868.70 = 28,693.10/x
  3. Step 3: Cross multiply
    51,354.05x = 70,868.70 × 28,693.10
  4. Step 4: Simplify right side
    51,354.05x = 2,033,442,695.97
  5. Step 5: Solve for x
    x = 2,033,442,695.97/51,354.05
  6. Step 6: Final answer
    x = 39,596.54

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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.