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Finding the Fourth Proportional to 10,788.51, 14,887.07 and 7,957.41

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Solution

The fourth proportional to 10,788.51, 14,887.07 and 7,957.41 is: 10,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788.51 : 14,887.07 = 7,957.41 : x
  2. Step 2: Convert to fraction form
    10,788.51/14,887.07 = 7,957.41/x
  3. Step 3: Cross multiply
    10,788.51x = 14,887.07 × 7,957.41
  4. Step 4: Simplify right side
    10,788.51x = 118,462,519.69
  5. Step 5: Solve for x
    x = 118,462,519.69/10,788.51
  6. Step 6: Final answer
    x = 10,980.43

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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.