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Finding the Fourth Proportional to 19,226.40, 26,851.35 and 19,226.40

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Solution

The fourth proportional to 19,226.40, 26,851.35 and 19,226.40 is: 26,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,226.40 : 26,851.35 = 19,226.40 : x
  2. Step 2: Convert to fraction form
    19,226.40/26,851.35 = 19,226.40/x
  3. Step 3: Cross multiply
    19,226.40x = 26,851.35 × 19,226.40
  4. Step 4: Simplify right side
    19,226.40x = 516,254,795.64
  5. Step 5: Solve for x
    x = 516,254,795.64/19,226.40
  6. Step 6: Final answer
    x = 26,851.35

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Double scale
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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.