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Finding the Fourth Proportional to 8,802.99, 12,147.71 and 5,266.53

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Solution

The fourth proportional to 8,802.99, 12,147.71 and 5,266.53 is: 7,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,802.99 : 12,147.71 = 5,266.53 : x
  2. Step 2: Convert to fraction form
    8,802.99/12,147.71 = 5,266.53/x
  3. Step 3: Cross multiply
    8,802.99x = 12,147.71 × 5,266.53
  4. Step 4: Simplify right side
    8,802.99x = 63,976,252.81
  5. Step 5: Solve for x
    x = 63,976,252.81/8,802.99
  6. Step 6: Final answer
    x = 7,267.56

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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.