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Finding the Fourth Proportional to 35,894.64, 53,866.59 and 12,521.08

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Solution

The fourth proportional to 35,894.64, 53,866.59 and 12,521.08 is: 18,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,894.64 : 53,866.59 = 12,521.08 : x
  2. Step 2: Convert to fraction form
    35,894.64/53,866.59 = 12,521.08/x
  3. Step 3: Cross multiply
    35,894.64x = 53,866.59 × 12,521.08
  4. Step 4: Simplify right side
    35,894.64x = 674,467,613.38
  5. Step 5: Solve for x
    x = 674,467,613.38/35,894.64
  6. Step 6: Final answer
    x = 18,790.21

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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.