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Finding the Fourth Proportional to 18,109.95, 24,991.65 and 10,152.17

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Solution

The fourth proportional to 18,109.95, 24,991.65 and 10,152.17 is: 14,009.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.95 : 24,991.65 = 10,152.17 : x
  2. Step 2: Convert to fraction form
    18,109.95/24,991.65 = 10,152.17/x
  3. Step 3: Cross multiply
    18,109.95x = 24,991.65 × 10,152.17
  4. Step 4: Simplify right side
    18,109.95x = 253,719,354.42
  5. Step 5: Solve for x
    x = 253,719,354.42/18,109.95
  6. Step 6: Final answer
    x = 14,009.94

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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.