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Finding the Fourth Proportional to 61,409.16, 84,744.27 and 34,551.86

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Solution

The fourth proportional to 61,409.16, 84,744.27 and 34,551.86 is: 47,681.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,409.16 : 84,744.27 = 34,551.86 : x
  2. Step 2: Convert to fraction form
    61,409.16/84,744.27 = 34,551.86/x
  3. Step 3: Cross multiply
    61,409.16x = 84,744.27 × 34,551.86
  4. Step 4: Simplify right side
    61,409.16x = 2,928,071,729.12
  5. Step 5: Solve for x
    x = 2,928,071,729.12/61,409.16
  6. Step 6: Final answer
    x = 47,681.35

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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.