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Finding the Fourth Proportional to 8,878.02, 13,332.15 and 8,506.50

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Solution

The fourth proportional to 8,878.02, 13,332.15 and 8,506.50 is: 12,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.02 : 13,332.15 = 8,506.50 : x
  2. Step 2: Convert to fraction form
    8,878.02/13,332.15 = 8,506.50/x
  3. Step 3: Cross multiply
    8,878.02x = 13,332.15 × 8,506.50
  4. Step 4: Simplify right side
    8,878.02x = 113,409,933.98
  5. Step 5: Solve for x
    x = 113,409,933.98/8,878.02
  6. Step 6: Final answer
    x = 12,774.24

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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.