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Finding the Fourth Proportional to 19,341.60, 26,689.59 and 10,958.10

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Solution

The fourth proportional to 19,341.60, 26,689.59 and 10,958.10 is: 15,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,341.60 : 26,689.59 = 10,958.10 : x
  2. Step 2: Convert to fraction form
    19,341.60/26,689.59 = 10,958.10/x
  3. Step 3: Cross multiply
    19,341.60x = 26,689.59 × 10,958.10
  4. Step 4: Simplify right side
    19,341.60x = 292,467,196.18
  5. Step 5: Solve for x
    x = 292,467,196.18/19,341.60
  6. Step 6: Final answer
    x = 15,121.15

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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.