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Finding the Fourth Proportional to 64,820.25, 89,451.95 and 36,526.95

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Solution

The fourth proportional to 64,820.25, 89,451.95 and 36,526.95 is: 50,407.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,820.25 : 89,451.95 = 36,526.95 : x
  2. Step 2: Convert to fraction form
    64,820.25/89,451.95 = 36,526.95/x
  3. Step 3: Cross multiply
    64,820.25x = 89,451.95 × 36,526.95
  4. Step 4: Simplify right side
    64,820.25x = 3,267,406,722.42
  5. Step 5: Solve for x
    x = 3,267,406,722.42/64,820.25
  6. Step 6: Final answer
    x = 50,407.19

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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.