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Finding the Fourth Proportional to 64,823.64, 89,476.40 and 37,606.60

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Solution

The fourth proportional to 64,823.64, 89,476.40 and 37,606.60 is: 51,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,823.64 : 89,476.40 = 37,606.60 : x
  2. Step 2: Convert to fraction form
    64,823.64/89,476.40 = 37,606.60/x
  3. Step 3: Cross multiply
    64,823.64x = 89,476.40 × 37,606.60
  4. Step 4: Simplify right side
    64,823.64x = 3,364,903,184.24
  5. Step 5: Solve for x
    x = 3,364,903,184.24/64,823.64
  6. Step 6: Final answer
    x = 51,908.58

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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.