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Finding the Fourth Proportional to 7,646.99, 10,549.28 and 4,813.07

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Solution

The fourth proportional to 7,646.99, 10,549.28 and 4,813.07 is: 6,639.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,646.99 : 10,549.28 = 4,813.07 : x
  2. Step 2: Convert to fraction form
    7,646.99/10,549.28 = 4,813.07/x
  3. Step 3: Cross multiply
    7,646.99x = 10,549.28 × 4,813.07
  4. Step 4: Simplify right side
    7,646.99x = 50,774,399.02
  5. Step 5: Solve for x
    x = 50,774,399.02/7,646.99
  6. Step 6: Final answer
    x = 6,639.79

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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.