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Finding the Fourth Proportional to 18,114.10, 25,307.90 and 18,114.10

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Solution

The fourth proportional to 18,114.10, 25,307.90 and 18,114.10 is: 25,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.10 : 25,307.90 = 18,114.10 : x
  2. Step 2: Convert to fraction form
    18,114.10/25,307.90 = 18,114.10/x
  3. Step 3: Cross multiply
    18,114.10x = 25,307.90 × 18,114.10
  4. Step 4: Simplify right side
    18,114.10x = 458,429,831.39
  5. Step 5: Solve for x
    x = 458,429,831.39/18,114.10
  6. Step 6: Final answer
    x = 25,307.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.