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Finding the Fourth Proportional to 7,895.76, 10,895.38 and 4,358.76

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Solution

The fourth proportional to 7,895.76, 10,895.38 and 4,358.76 is: 6,014.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.76 : 10,895.38 = 4,358.76 : x
  2. Step 2: Convert to fraction form
    7,895.76/10,895.38 = 4,358.76/x
  3. Step 3: Cross multiply
    7,895.76x = 10,895.38 × 4,358.76
  4. Step 4: Simplify right side
    7,895.76x = 47,490,346.53
  5. Step 5: Solve for x
    x = 47,490,346.53/7,895.76
  6. Step 6: Final answer
    x = 6,014.66

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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.