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Finding the Fourth Proportional to 18,252.60, 25,188.58 and 9,869.08

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Solution

The fourth proportional to 18,252.60, 25,188.58 and 9,869.08 is: 13,619.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.60 : 25,188.58 = 9,869.08 : x
  2. Step 2: Convert to fraction form
    18,252.60/25,188.58 = 9,869.08/x
  3. Step 3: Cross multiply
    18,252.60x = 25,188.58 × 9,869.08
  4. Step 4: Simplify right side
    18,252.60x = 248,588,111.11
  5. Step 5: Solve for x
    x = 248,588,111.11/18,252.60
  6. Step 6: Final answer
    x = 13,619.33

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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.