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Finding the Fourth Proportional to 8,792.76, 12,133.80 and 4,813.92

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Solution

The fourth proportional to 8,792.76, 12,133.80 and 4,813.92 is: 6,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.76 : 12,133.80 = 4,813.92 : x
  2. Step 2: Convert to fraction form
    8,792.76/12,133.80 = 4,813.92/x
  3. Step 3: Cross multiply
    8,792.76x = 12,133.80 × 4,813.92
  4. Step 4: Simplify right side
    8,792.76x = 58,411,142.50
  5. Step 5: Solve for x
    x = 58,411,142.50/8,792.76
  6. Step 6: Final answer
    x = 6,643.10

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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.