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Finding the Fourth Proportional to 26,885.15, 40,325.70 and 10,875.70

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Solution

The fourth proportional to 26,885.15, 40,325.70 and 10,875.70 is: 16,312.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,885.15 : 40,325.70 = 10,875.70 : x
  2. Step 2: Convert to fraction form
    26,885.15/40,325.70 = 10,875.70/x
  3. Step 3: Cross multiply
    26,885.15x = 40,325.70 × 10,875.70
  4. Step 4: Simplify right side
    26,885.15x = 438,570,225.11
  5. Step 5: Solve for x
    x = 438,570,225.11/26,885.15
  6. Step 6: Final answer
    x = 16,312.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.