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Finding the Fourth Proportional to 19,472.58, 26,875.53 and 18,824.58

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Solution

The fourth proportional to 19,472.58, 26,875.53 and 18,824.58 is: 25,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,472.58 : 26,875.53 = 18,824.58 : x
  2. Step 2: Convert to fraction form
    19,472.58/26,875.53 = 18,824.58/x
  3. Step 3: Cross multiply
    19,472.58x = 26,875.53 × 18,824.58
  4. Step 4: Simplify right side
    19,472.58x = 505,920,564.53
  5. Step 5: Solve for x
    x = 505,920,564.53/19,472.58
  6. Step 6: Final answer
    x = 25,981.18

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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.