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Finding the Fourth Proportional to 61,415.52, 84,746.55 and 34,557.48

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Solution

The fourth proportional to 61,415.52, 84,746.55 and 34,557.48 is: 47,685.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,415.52 : 84,746.55 = 34,557.48 : x
  2. Step 2: Convert to fraction form
    61,415.52/84,746.55 = 34,557.48/x
  3. Step 3: Cross multiply
    61,415.52x = 84,746.55 × 34,557.48
  4. Step 4: Simplify right side
    61,415.52x = 2,928,627,206.69
  5. Step 5: Solve for x
    x = 2,928,627,206.69/61,415.52
  6. Step 6: Final answer
    x = 47,685.46

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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.