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Finding the Fourth Proportional to 62,666.79, 86,484.93 and 35,810.43

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Solution

The fourth proportional to 62,666.79, 86,484.93 and 35,810.43 is: 49,421.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,666.79 : 86,484.93 = 35,810.43 : x
  2. Step 2: Convert to fraction form
    62,666.79/86,484.93 = 35,810.43/x
  3. Step 3: Cross multiply
    62,666.79x = 86,484.93 × 35,810.43
  4. Step 4: Simplify right side
    62,666.79x = 3,097,062,531.82
  5. Step 5: Solve for x
    x = 3,097,062,531.82/62,666.79
  6. Step 6: Final answer
    x = 49,421.11

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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.