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Finding the Fourth Proportional to 23,411.60, 35,117.32 and 7,829.20

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Solution

The fourth proportional to 23,411.60, 35,117.32 and 7,829.20 is: 11,743.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,411.60 : 35,117.32 = 7,829.20 : x
  2. Step 2: Convert to fraction form
    23,411.60/35,117.32 = 7,829.20/x
  3. Step 3: Cross multiply
    23,411.60x = 35,117.32 × 7,829.20
  4. Step 4: Simplify right side
    23,411.60x = 274,940,521.74
  5. Step 5: Solve for x
    x = 274,940,521.74/23,411.60
  6. Step 6: Final answer
    x = 11,743.77

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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.