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Finding the Fourth Proportional to 18,762.17, 25,883.77 and 10,802.71

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Solution

The fourth proportional to 18,762.17, 25,883.77 and 10,802.71 is: 14,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,762.17 : 25,883.77 = 10,802.71 : x
  2. Step 2: Convert to fraction form
    18,762.17/25,883.77 = 10,802.71/x
  3. Step 3: Cross multiply
    18,762.17x = 25,883.77 × 10,802.71
  4. Step 4: Simplify right side
    18,762.17x = 279,614,731.60
  5. Step 5: Solve for x
    x = 279,614,731.60/18,762.17
  6. Step 6: Final answer
    x = 14,903.11

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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.