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Finding the Fourth Proportional to 64,013.71, 88,325.74 and 36,784.54

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Solution

The fourth proportional to 64,013.71, 88,325.74 and 36,784.54 is: 50,755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,013.71 : 88,325.74 = 36,784.54 : x
  2. Step 2: Convert to fraction form
    64,013.71/88,325.74 = 36,784.54/x
  3. Step 3: Cross multiply
    64,013.71x = 88,325.74 × 36,784.54
  4. Step 4: Simplify right side
    64,013.71x = 3,249,021,090.51
  5. Step 5: Solve for x
    x = 3,249,021,090.51/64,013.71
  6. Step 6: Final answer
    x = 50,755.08

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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.