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Finding the Fourth Proportional to 18,875.88, 26,044.74 and 10,492.20

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Solution

The fourth proportional to 18,875.88, 26,044.74 and 10,492.20 is: 14,477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.88 : 26,044.74 = 10,492.20 : x
  2. Step 2: Convert to fraction form
    18,875.88/26,044.74 = 10,492.20/x
  3. Step 3: Cross multiply
    18,875.88x = 26,044.74 × 10,492.20
  4. Step 4: Simplify right side
    18,875.88x = 273,266,621.03
  5. Step 5: Solve for x
    x = 273,266,621.03/18,875.88
  6. Step 6: Final answer
    x = 14,477.03

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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.