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Finding the Fourth Proportional to 18,665.19, 25,753.55 and 10,597.10

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Solution

The fourth proportional to 18,665.19, 25,753.55 and 10,597.10 is: 14,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.19 : 25,753.55 = 10,597.10 : x
  2. Step 2: Convert to fraction form
    18,665.19/25,753.55 = 10,597.10/x
  3. Step 3: Cross multiply
    18,665.19x = 25,753.55 × 10,597.10
  4. Step 4: Simplify right side
    18,665.19x = 272,912,762.95
  5. Step 5: Solve for x
    x = 272,912,762.95/18,665.19
  6. Step 6: Final answer
    x = 14,621.48

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Half scale
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Double 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.