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Finding the Fourth Proportional to 35,535, 53,302.77 and 12,161.64

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Solution

The fourth proportional to 35,535, 53,302.77 and 12,161.64 is: 18,242.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,535 : 53,302.77 = 12,161.64 : x
  2. Step 2: Convert to fraction form
    35,535/53,302.77 = 12,161.64/x
  3. Step 3: Cross multiply
    35,535x = 53,302.77 × 12,161.64
  4. Step 4: Simplify right side
    35,535x = 648,249,099.74
  5. Step 5: Solve for x
    x = 648,249,099.74/35,535
  6. Step 6: Final answer
    x = 18,242.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.