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Finding the Fourth Proportional to 18,275.63, 25,219.08 and 10,316.30

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Solution

The fourth proportional to 18,275.63, 25,219.08 and 10,316.30 is: 14,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.63 : 25,219.08 = 10,316.30 : x
  2. Step 2: Convert to fraction form
    18,275.63/25,219.08 = 10,316.30/x
  3. Step 3: Cross multiply
    18,275.63x = 25,219.08 × 10,316.30
  4. Step 4: Simplify right side
    18,275.63x = 260,167,468.91
  5. Step 5: Solve for x
    x = 260,167,468.91/18,275.63
  6. Step 6: Final answer
    x = 14,235.76

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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.