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Finding the Fourth Proportional to 19,492.71, 26,903.13 and 14,490.15

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Solution

The fourth proportional to 19,492.71, 26,903.13 and 14,490.15 is: 19,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,492.71 : 26,903.13 = 14,490.15 : x
  2. Step 2: Convert to fraction form
    19,492.71/26,903.13 = 14,490.15/x
  3. Step 3: Cross multiply
    19,492.71x = 26,903.13 × 14,490.15
  4. Step 4: Simplify right side
    19,492.71x = 389,830,389.17
  5. Step 5: Solve for x
    x = 389,830,389.17/19,492.71
  6. Step 6: Final answer
    x = 19,998.78

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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.