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Finding the Fourth Proportional to 18,873.90, 26,045.92 and 10,260.16

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Solution

The fourth proportional to 18,873.90, 26,045.92 and 10,260.16 is: 14,158.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.90 : 26,045.92 = 10,260.16 : x
  2. Step 2: Convert to fraction form
    18,873.90/26,045.92 = 10,260.16/x
  3. Step 3: Cross multiply
    18,873.90x = 26,045.92 × 10,260.16
  4. Step 4: Simplify right side
    18,873.90x = 267,235,339.17
  5. Step 5: Solve for x
    x = 267,235,339.17/18,873.90
  6. Step 6: Final answer
    x = 14,158.99

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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.