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Finding the Fourth Proportional to 18,750.02, 25,886.25 and 11,686.01

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Solution

The fourth proportional to 18,750.02, 25,886.25 and 11,686.01 is: 16,133.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.02 : 25,886.25 = 11,686.01 : x
  2. Step 2: Convert to fraction form
    18,750.02/25,886.25 = 11,686.01/x
  3. Step 3: Cross multiply
    18,750.02x = 25,886.25 × 11,686.01
  4. Step 4: Simplify right side
    18,750.02x = 302,506,846.93
  5. Step 5: Solve for x
    x = 302,506,846.93/18,750.02
  6. Step 6: Final answer
    x = 16,133.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.