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Finding the Fourth Proportional to 7,615.07, 10,509.98 and 4,631.84

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Solution

The fourth proportional to 7,615.07, 10,509.98 and 4,631.84 is: 6,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.07 : 10,509.98 = 4,631.84 : x
  2. Step 2: Convert to fraction form
    7,615.07/10,509.98 = 4,631.84/x
  3. Step 3: Cross multiply
    7,615.07x = 10,509.98 × 4,631.84
  4. Step 4: Simplify right side
    7,615.07x = 48,680,545.76
  5. Step 5: Solve for x
    x = 48,680,545.76/7,615.07
  6. Step 6: Final answer
    x = 6,392.66

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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.