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Finding the Fourth Proportional to 14,605.80, 21,903.30 and 10,210.20

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Solution

The fourth proportional to 14,605.80, 21,903.30 and 10,210.20 is: 15,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.80 : 21,903.30 = 10,210.20 : x
  2. Step 2: Convert to fraction form
    14,605.80/21,903.30 = 10,210.20/x
  3. Step 3: Cross multiply
    14,605.80x = 21,903.30 × 10,210.20
  4. Step 4: Simplify right side
    14,605.80x = 223,637,073.66
  5. Step 5: Solve for x
    x = 223,637,073.66/14,605.80
  6. Step 6: Final answer
    x = 15,311.53

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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.