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Finding the Fourth Proportional to 19,191.60, 26,483.92 and 10,693.76

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Solution

The fourth proportional to 19,191.60, 26,483.92 and 10,693.76 is: 14,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.60 : 26,483.92 = 10,693.76 : x
  2. Step 2: Convert to fraction form
    19,191.60/26,483.92 = 10,693.76/x
  3. Step 3: Cross multiply
    19,191.60x = 26,483.92 × 10,693.76
  4. Step 4: Simplify right side
    19,191.60x = 283,212,684.34
  5. Step 5: Solve for x
    x = 283,212,684.34/19,191.60
  6. Step 6: Final answer
    x = 14,757.12

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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.