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Finding the Fourth Proportional to 56,478.79, 84,716.74 and 14,926.15

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Solution

The fourth proportional to 56,478.79, 84,716.74 and 14,926.15 is: 22,388.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,478.79 : 84,716.74 = 14,926.15 : x
  2. Step 2: Convert to fraction form
    56,478.79/84,716.74 = 14,926.15/x
  3. Step 3: Cross multiply
    56,478.79x = 84,716.74 × 14,926.15
  4. Step 4: Simplify right side
    56,478.79x = 1,264,494,768.75
  5. Step 5: Solve for x
    x = 1,264,494,768.75/56,478.79
  6. Step 6: Final answer
    x = 22,388.84

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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.