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Finding the Fourth Proportional to 61,879.77, 85,394.18 and 33,585.47

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Solution

The fourth proportional to 61,879.77, 85,394.18 and 33,585.47 is: 46,347.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.77 : 85,394.18 = 33,585.47 : x
  2. Step 2: Convert to fraction form
    61,879.77/85,394.18 = 33,585.47/x
  3. Step 3: Cross multiply
    61,879.77x = 85,394.18 × 33,585.47
  4. Step 4: Simplify right side
    61,879.77x = 2,868,003,075.67
  5. Step 5: Solve for x
    x = 2,868,003,075.67/61,879.77
  6. Step 6: Final answer
    x = 46,347.99

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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.