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Finding the Fourth Proportional to 64,875.48, 89,531.28 and 36,580.56

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Solution

The fourth proportional to 64,875.48, 89,531.28 and 36,580.56 is: 50,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,875.48 : 89,531.28 = 36,580.56 : x
  2. Step 2: Convert to fraction form
    64,875.48/89,531.28 = 36,580.56/x
  3. Step 3: Cross multiply
    64,875.48x = 89,531.28 × 36,580.56
  4. Step 4: Simplify right side
    64,875.48x = 3,275,104,359.92
  5. Step 5: Solve for x
    x = 3,275,104,359.92/64,875.48
  6. Step 6: Final answer
    x = 50,482.93

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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.