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Finding the Fourth Proportional to 61,868.49, 85,378.76 and 33,574.19

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Solution

The fourth proportional to 61,868.49, 85,378.76 and 33,574.19 is: 46,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,868.49 : 85,378.76 = 33,574.19 : x
  2. Step 2: Convert to fraction form
    61,868.49/85,378.76 = 33,574.19/x
  3. Step 3: Cross multiply
    61,868.49x = 85,378.76 × 33,574.19
  4. Step 4: Simplify right side
    61,868.49x = 2,866,522,710.20
  5. Step 5: Solve for x
    x = 2,866,522,710.20/61,868.49
  6. Step 6: Final answer
    x = 46,332.51

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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.