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Finding the Fourth Proportional to 27,465.78, 37,890.02 and 16,131.60

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Solution

The fourth proportional to 27,465.78, 37,890.02 and 16,131.60 is: 22,254.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,465.78 : 37,890.02 = 16,131.60 : x
  2. Step 2: Convert to fraction form
    27,465.78/37,890.02 = 16,131.60/x
  3. Step 3: Cross multiply
    27,465.78x = 37,890.02 × 16,131.60
  4. Step 4: Simplify right side
    27,465.78x = 611,226,646.63
  5. Step 5: Solve for x
    x = 611,226,646.63/27,465.78
  6. Step 6: Final answer
    x = 22,254.12

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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.