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Finding the Fourth Proportional to 18,860.08, 26,028.18 and 10,904.32

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Solution

The fourth proportional to 18,860.08, 26,028.18 and 10,904.32 is: 15,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.08 : 26,028.18 = 10,904.32 : x
  2. Step 2: Convert to fraction form
    18,860.08/26,028.18 = 10,904.32/x
  3. Step 3: Cross multiply
    18,860.08x = 26,028.18 × 10,904.32
  4. Step 4: Simplify right side
    18,860.08x = 283,819,603.74
  5. Step 5: Solve for x
    x = 283,819,603.74/18,860.08
  6. Step 6: Final answer
    x = 15,048.70

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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.