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Finding the Fourth Proportional to 18,646.86, 25,726.88 and 10,579.18

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Solution

The fourth proportional to 18,646.86, 25,726.88 and 10,579.18 is: 14,595.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.86 : 25,726.88 = 10,579.18 : x
  2. Step 2: Convert to fraction form
    18,646.86/25,726.88 = 10,579.18/x
  3. Step 3: Cross multiply
    18,646.86x = 25,726.88 × 10,579.18
  4. Step 4: Simplify right side
    18,646.86x = 272,169,294.36
  5. Step 5: Solve for x
    x = 272,169,294.36/18,646.86
  6. Step 6: Final answer
    x = 14,595.99

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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.