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Finding the Fourth Proportional to 64,798.32, 89,420.28 and 36,503.52

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Solution

The fourth proportional to 64,798.32, 89,420.28 and 36,503.52 is: 50,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,798.32 : 89,420.28 = 36,503.52 : x
  2. Step 2: Convert to fraction form
    64,798.32/89,420.28 = 36,503.52/x
  3. Step 3: Cross multiply
    64,798.32x = 89,420.28 × 36,503.52
  4. Step 4: Simplify right side
    64,798.32x = 3,264,154,979.39
  5. Step 5: Solve for x
    x = 3,264,154,979.39/64,798.32
  6. Step 6: Final answer
    x = 50,374.07

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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.