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Finding the Fourth Proportional to 7,690.61, 10,608.23 and 4,701.26

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Solution

The fourth proportional to 7,690.61, 10,608.23 and 4,701.26 is: 6,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.61 : 10,608.23 = 4,701.26 : x
  2. Step 2: Convert to fraction form
    7,690.61/10,608.23 = 4,701.26/x
  3. Step 3: Cross multiply
    7,690.61x = 10,608.23 × 4,701.26
  4. Step 4: Simplify right side
    7,690.61x = 49,872,085.64
  5. Step 5: Solve for x
    x = 49,872,085.64/7,690.61
  6. Step 6: Final answer
    x = 6,484.80

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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.