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Finding the Fourth Proportional to 9,770.85, 13,482.95 and 5,737.25

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Solution

The fourth proportional to 9,770.85, 13,482.95 and 5,737.25 is: 7,916.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,770.85 : 13,482.95 = 5,737.25 : x
  2. Step 2: Convert to fraction form
    9,770.85/13,482.95 = 5,737.25/x
  3. Step 3: Cross multiply
    9,770.85x = 13,482.95 × 5,737.25
  4. Step 4: Simplify right side
    9,770.85x = 77,354,958.79
  5. Step 5: Solve for x
    x = 77,354,958.79/9,770.85
  6. Step 6: Final answer
    x = 7,916.92

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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.