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Finding the Fourth Proportional to 18,013.68, 24,858.90 and 10,055.90

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Solution

The fourth proportional to 18,013.68, 24,858.90 and 10,055.90 is: 13,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013.68 : 24,858.90 = 10,055.90 : x
  2. Step 2: Convert to fraction form
    18,013.68/24,858.90 = 10,055.90/x
  3. Step 3: Cross multiply
    18,013.68x = 24,858.90 × 10,055.90
  4. Step 4: Simplify right side
    18,013.68x = 249,978,612.51
  5. Step 5: Solve for x
    x = 249,978,612.51/18,013.68
  6. Step 6: Final answer
    x = 13,877.15

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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.