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Finding the Fourth Proportional to 18,885.51, 26,061.75 and 10,502.01

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Solution

The fourth proportional to 18,885.51, 26,061.75 and 10,502.01 is: 14,492.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.51 : 26,061.75 = 10,502.01 : x
  2. Step 2: Convert to fraction form
    18,885.51/26,061.75 = 10,502.01/x
  3. Step 3: Cross multiply
    18,885.51x = 26,061.75 × 10,502.01
  4. Step 4: Simplify right side
    18,885.51x = 273,700,759.12
  5. Step 5: Solve for x
    x = 273,700,759.12/18,885.51
  6. Step 6: Final answer
    x = 14,492.63

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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.