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Finding the Fourth Proportional to 8,802.60, 12,147.90 and 4,823.52

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Solution

The fourth proportional to 8,802.60, 12,147.90 and 4,823.52 is: 6,656.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,802.60 : 12,147.90 = 4,823.52 : x
  2. Step 2: Convert to fraction form
    8,802.60/12,147.90 = 4,823.52/x
  3. Step 3: Cross multiply
    8,802.60x = 12,147.90 × 4,823.52
  4. Step 4: Simplify right side
    8,802.60x = 58,595,638.61
  5. Step 5: Solve for x
    x = 58,595,638.61/8,802.60
  6. Step 6: Final answer
    x = 6,656.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.