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Finding the Fourth Proportional to 18,482.54, 25,503.93 and 10,929.15

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Solution

The fourth proportional to 18,482.54, 25,503.93 and 10,929.15 is: 15,081.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.54 : 25,503.93 = 10,929.15 : x
  2. Step 2: Convert to fraction form
    18,482.54/25,503.93 = 10,929.15/x
  3. Step 3: Cross multiply
    18,482.54x = 25,503.93 × 10,929.15
  4. Step 4: Simplify right side
    18,482.54x = 278,736,276.56
  5. Step 5: Solve for x
    x = 278,736,276.56/18,482.54
  6. Step 6: Final answer
    x = 15,081.06

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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.