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Finding the Fourth Proportional to 7,909.61, 10,916.34 and 4,552.35

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Solution

The fourth proportional to 7,909.61, 10,916.34 and 4,552.35 is: 6,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.61 : 10,916.34 = 4,552.35 : x
  2. Step 2: Convert to fraction form
    7,909.61/10,916.34 = 4,552.35/x
  3. Step 3: Cross multiply
    7,909.61x = 10,916.34 × 4,552.35
  4. Step 4: Simplify right side
    7,909.61x = 49,695,000.40
  5. Step 5: Solve for x
    x = 49,695,000.40/7,909.61
  6. Step 6: Final answer
    x = 6,282.87

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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.