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Finding the Fourth Proportional to 7,666.77, 10,580.84 and 4,310.40

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Solution

The fourth proportional to 7,666.77, 10,580.84 and 4,310.40 is: 5,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.77 : 10,580.84 = 4,310.40 : x
  2. Step 2: Convert to fraction form
    7,666.77/10,580.84 = 4,310.40/x
  3. Step 3: Cross multiply
    7,666.77x = 10,580.84 × 4,310.40
  4. Step 4: Simplify right side
    7,666.77x = 45,607,631.18
  5. Step 5: Solve for x
    x = 45,607,631.18/7,666.77
  6. Step 6: Final answer
    x = 5,948.74

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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.