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Finding the Fourth Proportional to 61,231.88, 84,424.95 and 42,073.76

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Solution

The fourth proportional to 61,231.88, 84,424.95 and 42,073.76 is: 58,010.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,231.88 : 84,424.95 = 42,073.76 : x
  2. Step 2: Convert to fraction form
    61,231.88/84,424.95 = 42,073.76/x
  3. Step 3: Cross multiply
    61,231.88x = 84,424.95 × 42,073.76
  4. Step 4: Simplify right side
    61,231.88x = 3,552,075,295.37
  5. Step 5: Solve for x
    x = 3,552,075,295.37/61,231.88
  6. Step 6: Final answer
    x = 58,010.23

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1.5x scale

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.