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Finding the Fourth Proportional to 14,807.16, 20,405.76 and 10,608.12

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Solution

The fourth proportional to 14,807.16, 20,405.76 and 10,608.12 is: 14,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,807.16 : 20,405.76 = 10,608.12 : x
  2. Step 2: Convert to fraction form
    14,807.16/20,405.76 = 10,608.12/x
  3. Step 3: Cross multiply
    14,807.16x = 20,405.76 × 10,608.12
  4. Step 4: Simplify right side
    14,807.16x = 216,466,750.77
  5. Step 5: Solve for x
    x = 216,466,750.77/14,807.16
  6. Step 6: Final answer
    x = 14,619.06

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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.