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Finding the Fourth Proportional to 35,503.55, 53,239.83 and 18,859.58

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Solution

The fourth proportional to 35,503.55, 53,239.83 and 18,859.58 is: 28,281.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,503.55 : 53,239.83 = 18,859.58 : x
  2. Step 2: Convert to fraction form
    35,503.55/53,239.83 = 18,859.58/x
  3. Step 3: Cross multiply
    35,503.55x = 53,239.83 × 18,859.58
  4. Step 4: Simplify right side
    35,503.55x = 1,004,080,833.07
  5. Step 5: Solve for x
    x = 1,004,080,833.07/35,503.55
  6. Step 6: Final answer
    x = 28,281.14

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1.5x scale

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.