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Finding the Fourth Proportional to 19,459.60, 26,874.60 and 15,298.32

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Solution

The fourth proportional to 19,459.60, 26,874.60 and 15,298.32 is: 21,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,459.60 : 26,874.60 = 15,298.32 : x
  2. Step 2: Convert to fraction form
    19,459.60/26,874.60 = 15,298.32/x
  3. Step 3: Cross multiply
    19,459.60x = 26,874.60 × 15,298.32
  4. Step 4: Simplify right side
    19,459.60x = 411,136,230.67
  5. Step 5: Solve for x
    x = 411,136,230.67/19,459.60
  6. Step 6: Final answer
    x = 21,127.68

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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.