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Finding the Fourth Proportional to 75,364.84, 113,063.26 and 28,616.68

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Solution

The fourth proportional to 75,364.84, 113,063.26 and 28,616.68 is: 42,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,364.84 : 113,063.26 = 28,616.68 : x
  2. Step 2: Convert to fraction form
    75,364.84/113,063.26 = 28,616.68/x
  3. Step 3: Cross multiply
    75,364.84x = 113,063.26 × 28,616.68
  4. Step 4: Simplify right side
    75,364.84x = 3,235,495,131.18
  5. Step 5: Solve for x
    x = 3,235,495,131.18/75,364.84
  6. Step 6: Final answer
    x = 42,931.10

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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.