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Finding the Fourth Proportional to 18,752.61, 25,885.12 and 10,798.01

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Solution

The fourth proportional to 18,752.61, 25,885.12 and 10,798.01 is: 14,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.61 : 25,885.12 = 10,798.01 : x
  2. Step 2: Convert to fraction form
    18,752.61/25,885.12 = 10,798.01/x
  3. Step 3: Cross multiply
    18,752.61x = 25,885.12 × 10,798.01
  4. Step 4: Simplify right side
    18,752.61x = 279,507,745.51
  5. Step 5: Solve for x
    x = 279,507,745.51/18,752.61
  6. Step 6: Final answer
    x = 14,905.00

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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.