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Finding the Fourth Proportional to 14,719.40, 22,079.10 and 4,860.20

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Solution

The fourth proportional to 14,719.40, 22,079.10 and 4,860.20 is: 7,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,719.40 : 22,079.10 = 4,860.20 : x
  2. Step 2: Convert to fraction form
    14,719.40/22,079.10 = 4,860.20/x
  3. Step 3: Cross multiply
    14,719.40x = 22,079.10 × 4,860.20
  4. Step 4: Simplify right side
    14,719.40x = 107,308,841.82
  5. Step 5: Solve for x
    x = 107,308,841.82/14,719.40
  6. Step 6: Final answer
    x = 7,290.30

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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.