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Finding the Fourth Proportional to 18,580.53, 27,870.45 and 7,486.92

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Solution

The fourth proportional to 18,580.53, 27,870.45 and 7,486.92 is: 11,230.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.53 : 27,870.45 = 7,486.92 : x
  2. Step 2: Convert to fraction form
    18,580.53/27,870.45 = 7,486.92/x
  3. Step 3: Cross multiply
    18,580.53x = 27,870.45 × 7,486.92
  4. Step 4: Simplify right side
    18,580.53x = 208,663,829.51
  5. Step 5: Solve for x
    x = 208,663,829.51/18,580.53
  6. Step 6: Final answer
    x = 11,230.24

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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.