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Finding the Fourth Proportional to 18,547.81, 25,595.80 and 10,049.74

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Solution

The fourth proportional to 18,547.81, 25,595.80 and 10,049.74 is: 13,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.81 : 25,595.80 = 10,049.74 : x
  2. Step 2: Convert to fraction form
    18,547.81/25,595.80 = 10,049.74/x
  3. Step 3: Cross multiply
    18,547.81x = 25,595.80 × 10,049.74
  4. Step 4: Simplify right side
    18,547.81x = 257,231,045.98
  5. Step 5: Solve for x
    x = 257,231,045.98/18,547.81
  6. Step 6: Final answer
    x = 13,868.54

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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.