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Finding the Fourth Proportional to 61,280.94, 84,564.45 and 34,424.58

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Solution

The fourth proportional to 61,280.94, 84,564.45 and 34,424.58 is: 47,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,280.94 : 84,564.45 = 34,424.58 : x
  2. Step 2: Convert to fraction form
    61,280.94/84,564.45 = 34,424.58/x
  3. Step 3: Cross multiply
    61,280.94x = 84,564.45 × 34,424.58
  4. Step 4: Simplify right side
    61,280.94x = 2,911,095,674.18
  5. Step 5: Solve for x
    x = 2,911,095,674.18/61,280.94
  6. Step 6: Final answer
    x = 47,504.10

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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.