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Finding the Fourth Proportional to 93,282.37, 128,721.53 and 51,881.44

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Solution

The fourth proportional to 93,282.37, 128,721.53 and 51,881.44 is: 71,591.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,282.37 : 128,721.53 = 51,881.44 : x
  2. Step 2: Convert to fraction form
    93,282.37/128,721.53 = 51,881.44/x
  3. Step 3: Cross multiply
    93,282.37x = 128,721.53 × 51,881.44
  4. Step 4: Simplify right side
    93,282.37x = 6,678,258,335.40
  5. Step 5: Solve for x
    x = 6,678,258,335.40/93,282.37
  6. Step 6: Final answer
    x = 71,591.86

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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.