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Finding the Fourth Proportional to 51,153.84, 70,602.11 and 28,797.84

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Solution

The fourth proportional to 51,153.84, 70,602.11 and 28,797.84 is: 39,746.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,153.84 : 70,602.11 = 28,797.84 : x
  2. Step 2: Convert to fraction form
    51,153.84/70,602.11 = 28,797.84/x
  3. Step 3: Cross multiply
    51,153.84x = 70,602.11 × 28,797.84
  4. Step 4: Simplify right side
    51,153.84x = 2,033,188,123.45
  5. Step 5: Solve for x
    x = 2,033,188,123.45/51,153.84
  6. Step 6: Final answer
    x = 39,746.54

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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.