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Finding the Fourth Proportional to 15,197.79, 22,808.31 and 9,931.32

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Solution

The fourth proportional to 15,197.79, 22,808.31 and 9,931.32 is: 14,904.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197.79 : 22,808.31 = 9,931.32 : x
  2. Step 2: Convert to fraction form
    15,197.79/22,808.31 = 9,931.32/x
  3. Step 3: Cross multiply
    15,197.79x = 22,808.31 × 9,931.32
  4. Step 4: Simplify right side
    15,197.79x = 226,516,625.27
  5. Step 5: Solve for x
    x = 226,516,625.27/15,197.79
  6. Step 6: Final answer
    x = 14,904.58

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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.