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Finding the Fourth Proportional to 33,417.90, 46,115.55 and 18,513.90

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Solution

The fourth proportional to 33,417.90, 46,115.55 and 18,513.90 is: 25,548.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,417.90 : 46,115.55 = 18,513.90 : x
  2. Step 2: Convert to fraction form
    33,417.90/46,115.55 = 18,513.90/x
  3. Step 3: Cross multiply
    33,417.90x = 46,115.55 × 18,513.90
  4. Step 4: Simplify right side
    33,417.90x = 853,778,681.15
  5. Step 5: Solve for x
    x = 853,778,681.15/33,417.90
  6. Step 6: Final answer
    x = 25,548.54

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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.