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Finding the Fourth Proportional to 7,656.70, 10,572.99 and 4,829.13

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Solution

The fourth proportional to 7,656.70, 10,572.99 and 4,829.13 is: 6,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.70 : 10,572.99 = 4,829.13 : x
  2. Step 2: Convert to fraction form
    7,656.70/10,572.99 = 4,829.13/x
  3. Step 3: Cross multiply
    7,656.70x = 10,572.99 × 4,829.13
  4. Step 4: Simplify right side
    7,656.70x = 51,058,343.20
  5. Step 5: Solve for x
    x = 51,058,343.20/7,656.70
  6. Step 6: Final answer
    x = 6,668.45

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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.