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Finding the Fourth Proportional to 99,866.81, 149,798.85 and 24,986.67

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Solution

The fourth proportional to 99,866.81, 149,798.85 and 24,986.67 is: 37,479.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,866.81 : 149,798.85 = 24,986.67 : x
  2. Step 2: Convert to fraction form
    99,866.81/149,798.85 = 24,986.67/x
  3. Step 3: Cross multiply
    99,866.81x = 149,798.85 × 24,986.67
  4. Step 4: Simplify right side
    99,866.81x = 3,742,974,431.33
  5. Step 5: Solve for x
    x = 3,742,974,431.33/99,866.81
  6. Step 6: Final answer
    x = 37,479.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.