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Finding the Fourth Proportional to 18,624.84, 25,700.94 and 10,666.86

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Solution

The fourth proportional to 18,624.84, 25,700.94 and 10,666.86 is: 14,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.84 : 25,700.94 = 10,666.86 : x
  2. Step 2: Convert to fraction form
    18,624.84/25,700.94 = 10,666.86/x
  3. Step 3: Cross multiply
    18,624.84x = 25,700.94 × 10,666.86
  4. Step 4: Simplify right side
    18,624.84x = 274,148,328.85
  5. Step 5: Solve for x
    x = 274,148,328.85/18,624.84
  6. Step 6: Final answer
    x = 14,719.50

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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.