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Finding the Fourth Proportional to 64,364.64, 88,848 and 62,589.12

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Solution

The fourth proportional to 64,364.64, 88,848 and 62,589.12 is: 86,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,364.64 : 88,848 = 62,589.12 : x
  2. Step 2: Convert to fraction form
    64,364.64/88,848 = 62,589.12/x
  3. Step 3: Cross multiply
    64,364.64x = 88,848 × 62,589.12
  4. Step 4: Simplify right side
    64,364.64x = 5,560,918,133.76
  5. Step 5: Solve for x
    x = 5,560,918,133.76/64,364.64
  6. Step 6: Final answer
    x = 86,397.10

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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.