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Finding the Fourth Proportional to 64,056.36, 88,405.28 and 37,200

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Solution

The fourth proportional to 64,056.36, 88,405.28 and 37,200 is: 51,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,056.36 : 88,405.28 = 37,200 : x
  2. Step 2: Convert to fraction form
    64,056.36/88,405.28 = 37,200/x
  3. Step 3: Cross multiply
    64,056.36x = 88,405.28 × 37,200
  4. Step 4: Simplify right side
    64,056.36x = 3,288,676,416
  5. Step 5: Solve for x
    x = 3,288,676,416/64,056.36
  6. Step 6: Final answer
    x = 51,340.36

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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.