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Finding the Fourth Proportional to 15,929.60, 23,894.40 and 9,017.60

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Solution

The fourth proportional to 15,929.60, 23,894.40 and 9,017.60 is: 13,526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.60 : 23,894.40 = 9,017.60 : x
  2. Step 2: Convert to fraction form
    15,929.60/23,894.40 = 9,017.60/x
  3. Step 3: Cross multiply
    15,929.60x = 23,894.40 × 9,017.60
  4. Step 4: Simplify right side
    15,929.60x = 215,470,141.44
  5. Step 5: Solve for x
    x = 215,470,141.44/15,929.60
  6. Step 6: Final answer
    x = 13,526.40

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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.