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Finding the Fourth Proportional to 64,068.81, 88,407.37 and 35,386.77

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Solution

The fourth proportional to 64,068.81, 88,407.37 and 35,386.77 is: 48,829.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,068.81 : 88,407.37 = 35,386.77 : x
  2. Step 2: Convert to fraction form
    64,068.81/88,407.37 = 35,386.77/x
  3. Step 3: Cross multiply
    64,068.81x = 88,407.37 × 35,386.77
  4. Step 4: Simplify right side
    64,068.81x = 3,128,451,268.49
  5. Step 5: Solve for x
    x = 3,128,451,268.49/64,068.81
  6. Step 6: Final answer
    x = 48,829.55

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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.