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Finding the Fourth Proportional to 7,666.16, 10,579.05 and 4,308.89

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Solution

The fourth proportional to 7,666.16, 10,579.05 and 4,308.89 is: 5,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.16 : 10,579.05 = 4,308.89 : x
  2. Step 2: Convert to fraction form
    7,666.16/10,579.05 = 4,308.89/x
  3. Step 3: Cross multiply
    7,666.16x = 10,579.05 × 4,308.89
  4. Step 4: Simplify right side
    7,666.16x = 45,583,962.75
  5. Step 5: Solve for x
    x = 45,583,962.75/7,666.16
  6. Step 6: Final answer
    x = 5,946.13

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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.