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Finding the Fourth Proportional to 38,005.60, 57,005.88 and 11,708.08

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Solution

The fourth proportional to 38,005.60, 57,005.88 and 11,708.08 is: 17,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,005.60 : 57,005.88 = 11,708.08 : x
  2. Step 2: Convert to fraction form
    38,005.60/57,005.88 = 11,708.08/x
  3. Step 3: Cross multiply
    38,005.60x = 57,005.88 × 11,708.08
  4. Step 4: Simplify right side
    38,005.60x = 667,429,403.51
  5. Step 5: Solve for x
    x = 667,429,403.51/38,005.60
  6. Step 6: Final answer
    x = 17,561.34

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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.