Home / 39,784.09-54,880.89-30,208.11

Finding the Fourth Proportional to 39,784.09, 54,880.89 and 30,208.11

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Solution

The fourth proportional to 39,784.09, 54,880.89 and 30,208.11 is: 41,671.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784.09 : 54,880.89 = 30,208.11 : x
  2. Step 2: Convert to fraction form
    39,784.09/54,880.89 = 30,208.11/x
  3. Step 3: Cross multiply
    39,784.09x = 54,880.89 × 30,208.11
  4. Step 4: Simplify right side
    39,784.09x = 1,657,847,737.46
  5. Step 5: Solve for x
    x = 1,657,847,737.46/39,784.09
  6. Step 6: Final answer
    x = 41,671.12

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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.