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Finding the Fourth Proportional to 13,340.16, 19,972.98 and 6,752.16

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Solution

The fourth proportional to 13,340.16, 19,972.98 and 6,752.16 is: 10,109.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.16 : 19,972.98 = 6,752.16 : x
  2. Step 2: Convert to fraction form
    13,340.16/19,972.98 = 6,752.16/x
  3. Step 3: Cross multiply
    13,340.16x = 19,972.98 × 6,752.16
  4. Step 4: Simplify right side
    13,340.16x = 134,860,756.64
  5. Step 5: Solve for x
    x = 134,860,756.64/13,340.16
  6. Step 6: Final answer
    x = 10,109.38

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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.