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Finding the Fourth Proportional to 18,101.40, 24,980.93 and 10,146.18

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Solution

The fourth proportional to 18,101.40, 24,980.93 and 10,146.18 is: 14,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.40 : 24,980.93 = 10,146.18 : x
  2. Step 2: Convert to fraction form
    18,101.40/24,980.93 = 10,146.18/x
  3. Step 3: Cross multiply
    18,101.40x = 24,980.93 × 10,146.18
  4. Step 4: Simplify right side
    18,101.40x = 253,461,012.35
  5. Step 5: Solve for x
    x = 253,461,012.35/18,101.40
  6. Step 6: Final answer
    x = 14,002.29

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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.