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Finding the Fourth Proportional to 25,885.71, 35,698.59 and 19,188.02

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Solution

The fourth proportional to 25,885.71, 35,698.59 and 19,188.02 is: 26,461.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,885.71 : 35,698.59 = 19,188.02 : x
  2. Step 2: Convert to fraction form
    25,885.71/35,698.59 = 19,188.02/x
  3. Step 3: Cross multiply
    25,885.71x = 35,698.59 × 19,188.02
  4. Step 4: Simplify right side
    25,885.71x = 684,985,348.14
  5. Step 5: Solve for x
    x = 684,985,348.14/25,885.71
  6. Step 6: Final answer
    x = 26,461.91

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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.