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Finding the Fourth Proportional to 19,510.71, 26,868.06 and 16,957.32

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Solution

The fourth proportional to 19,510.71, 26,868.06 and 16,957.32 is: 23,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,510.71 : 26,868.06 = 16,957.32 : x
  2. Step 2: Convert to fraction form
    19,510.71/26,868.06 = 16,957.32/x
  3. Step 3: Cross multiply
    19,510.71x = 26,868.06 × 16,957.32
  4. Step 4: Simplify right side
    19,510.71x = 455,610,291.20
  5. Step 5: Solve for x
    x = 455,610,291.20/19,510.71
  6. Step 6: Final answer
    x = 23,351.80

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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.