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Finding the Fourth Proportional to 61,866.40, 85,375.20 and 33,572.32

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Solution

The fourth proportional to 61,866.40, 85,375.20 and 33,572.32 is: 46,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,866.40 : 85,375.20 = 33,572.32 : x
  2. Step 2: Convert to fraction form
    61,866.40/85,375.20 = 33,572.32/x
  3. Step 3: Cross multiply
    61,866.40x = 85,375.20 × 33,572.32
  4. Step 4: Simplify right side
    61,866.40x = 2,866,243,534.46
  5. Step 5: Solve for x
    x = 2,866,243,534.46/61,866.40
  6. Step 6: Final answer
    x = 46,329.57

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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.