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Finding the Fourth Proportional to 19,563.60, 29,345.40 and 15,335.40

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Solution

The fourth proportional to 19,563.60, 29,345.40 and 15,335.40 is: 23,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,563.60 : 29,345.40 = 15,335.40 : x
  2. Step 2: Convert to fraction form
    19,563.60/29,345.40 = 15,335.40/x
  3. Step 3: Cross multiply
    19,563.60x = 29,345.40 × 15,335.40
  4. Step 4: Simplify right side
    19,563.60x = 450,023,447.16
  5. Step 5: Solve for x
    x = 450,023,447.16/19,563.60
  6. Step 6: Final answer
    x = 23,003.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.