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Finding the Fourth Proportional to 18,210.25, 25,130.12 and 10,252.51

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Solution

The fourth proportional to 18,210.25, 25,130.12 and 10,252.51 is: 14,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.25 : 25,130.12 = 10,252.51 : x
  2. Step 2: Convert to fraction form
    18,210.25/25,130.12 = 10,252.51/x
  3. Step 3: Cross multiply
    18,210.25x = 25,130.12 × 10,252.51
  4. Step 4: Simplify right side
    18,210.25x = 257,646,692.51
  5. Step 5: Solve for x
    x = 257,646,692.51/18,210.25
  6. Step 6: Final answer
    x = 14,148.44

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Half scale
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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.