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Finding the Fourth Proportional to 15,776.81, 23,658.72 and 5,911.01

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Solution

The fourth proportional to 15,776.81, 23,658.72 and 5,911.01 is: 8,864.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776.81 : 23,658.72 = 5,911.01 : x
  2. Step 2: Convert to fraction form
    15,776.81/23,658.72 = 5,911.01/x
  3. Step 3: Cross multiply
    15,776.81x = 23,658.72 × 5,911.01
  4. Step 4: Simplify right side
    15,776.81x = 139,846,812.21
  5. Step 5: Solve for x
    x = 139,846,812.21/15,776.81
  6. Step 6: Final answer
    x = 8,864.08

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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.