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Finding the Fourth Proportional to 64,284.30, 88,712.28 and 35,990.01

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Solution

The fourth proportional to 64,284.30, 88,712.28 and 35,990.01 is: 49,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,284.30 : 88,712.28 = 35,990.01 : x
  2. Step 2: Convert to fraction form
    64,284.30/88,712.28 = 35,990.01/x
  3. Step 3: Cross multiply
    64,284.30x = 88,712.28 × 35,990.01
  4. Step 4: Simplify right side
    64,284.30x = 3,192,755,844.32
  5. Step 5: Solve for x
    x = 3,192,755,844.32/64,284.30
  6. Step 6: Final answer
    x = 49,666.18

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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.