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Finding the Fourth Proportional to 19,009.60, 26,679.05 and 19,009.60

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Solution

The fourth proportional to 19,009.60, 26,679.05 and 19,009.60 is: 26,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.60 : 26,679.05 = 19,009.60 : x
  2. Step 2: Convert to fraction form
    19,009.60/26,679.05 = 19,009.60/x
  3. Step 3: Cross multiply
    19,009.60x = 26,679.05 × 19,009.60
  4. Step 4: Simplify right side
    19,009.60x = 507,158,068.88
  5. Step 5: Solve for x
    x = 507,158,068.88/19,009.60
  6. Step 6: Final answer
    x = 26,679.05

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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.