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Finding the Fourth Proportional to 64,528.64, 89,070.41 and 41,827.58

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Solution

The fourth proportional to 64,528.64, 89,070.41 and 41,827.58 is: 57,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,528.64 : 89,070.41 = 41,827.58 : x
  2. Step 2: Convert to fraction form
    64,528.64/89,070.41 = 41,827.58/x
  3. Step 3: Cross multiply
    64,528.64x = 89,070.41 × 41,827.58
  4. Step 4: Simplify right side
    64,528.64x = 3,725,599,490.77
  5. Step 5: Solve for x
    x = 3,725,599,490.77/64,528.64
  6. Step 6: Final answer
    x = 57,735.60

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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.