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Finding the Fourth Proportional to 61,974.99, 85,494 and 40,477.33

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Solution

The fourth proportional to 61,974.99, 85,494 and 40,477.33 is: 55,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,974.99 : 85,494 = 40,477.33 : x
  2. Step 2: Convert to fraction form
    61,974.99/85,494 = 40,477.33/x
  3. Step 3: Cross multiply
    61,974.99x = 85,494 × 40,477.33
  4. Step 4: Simplify right side
    61,974.99x = 3,460,568,851.02
  5. Step 5: Solve for x
    x = 3,460,568,851.02/61,974.99
  6. Step 6: Final answer
    x = 55,838.15

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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.