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Finding the Fourth Proportional to 18,925.92, 26,120.88 and 10,545.12

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Solution

The fourth proportional to 18,925.92, 26,120.88 and 10,545.12 is: 14,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,925.92 : 26,120.88 = 10,545.12 : x
  2. Step 2: Convert to fraction form
    18,925.92/26,120.88 = 10,545.12/x
  3. Step 3: Cross multiply
    18,925.92x = 26,120.88 × 10,545.12
  4. Step 4: Simplify right side
    18,925.92x = 275,447,814.11
  5. Step 5: Solve for x
    x = 275,447,814.11/18,925.92
  6. Step 6: Final answer
    x = 14,554.00

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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.