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Finding the Fourth Proportional to 64,595.76, 89,132.68 and 35,913.12

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Solution

The fourth proportional to 64,595.76, 89,132.68 and 35,913.12 is: 49,554.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,595.76 : 89,132.68 = 35,913.12 : x
  2. Step 2: Convert to fraction form
    64,595.76/89,132.68 = 35,913.12/x
  3. Step 3: Cross multiply
    64,595.76x = 89,132.68 × 35,913.12
  4. Step 4: Simplify right side
    64,595.76x = 3,201,032,632.76
  5. Step 5: Solve for x
    x = 3,201,032,632.76/64,595.76
  6. Step 6: Final answer
    x = 49,554.84

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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.