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Finding the Fourth Proportional to 64,488.34, 88,992.66 and 35,806.51

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Solution

The fourth proportional to 64,488.34, 88,992.66 and 35,806.51 is: 49,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,488.34 : 88,992.66 = 35,806.51 : x
  2. Step 2: Convert to fraction form
    64,488.34/88,992.66 = 35,806.51/x
  3. Step 3: Cross multiply
    64,488.34x = 88,992.66 × 35,806.51
  4. Step 4: Simplify right side
    64,488.34x = 3,186,516,570.22
  5. Step 5: Solve for x
    x = 3,186,516,570.22/64,488.34
  6. Step 6: Final answer
    x = 49,412.29

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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.