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Finding the Fourth Proportional to 17,655.77, 26,477.76 and 7,123.07

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Solution

The fourth proportional to 17,655.77, 26,477.76 and 7,123.07 is: 10,682.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,655.77 : 26,477.76 = 7,123.07 : x
  2. Step 2: Convert to fraction form
    17,655.77/26,477.76 = 7,123.07/x
  3. Step 3: Cross multiply
    17,655.77x = 26,477.76 × 7,123.07
  4. Step 4: Simplify right side
    17,655.77x = 188,602,937.92
  5. Step 5: Solve for x
    x = 188,602,937.92/17,655.77
  6. Step 6: Final answer
    x = 10,682.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.