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Finding the Fourth Proportional to 22,985.60, 34,479.20 and 7,404.16

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Solution

The fourth proportional to 22,985.60, 34,479.20 and 7,404.16 is: 11,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,985.60 : 34,479.20 = 7,404.16 : x
  2. Step 2: Convert to fraction form
    22,985.60/34,479.20 = 7,404.16/x
  3. Step 3: Cross multiply
    22,985.60x = 34,479.20 × 7,404.16
  4. Step 4: Simplify right side
    22,985.60x = 255,289,513.47
  5. Step 5: Solve for x
    x = 255,289,513.47/22,985.60
  6. Step 6: Final answer
    x = 11,106.50

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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.