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Finding the Fourth Proportional to 7,144.93, 9,860.53 and 4,313.00

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Solution

The fourth proportional to 7,144.93, 9,860.53 and 4,313.00 is: 5,952.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.93 : 9,860.53 = 4,313.00 : x
  2. Step 2: Convert to fraction form
    7,144.93/9,860.53 = 4,313.00/x
  3. Step 3: Cross multiply
    7,144.93x = 9,860.53 × 4,313.00
  4. Step 4: Simplify right side
    7,144.93x = 42,528,405.80
  5. Step 5: Solve for x
    x = 42,528,405.80/7,144.93
  6. Step 6: Final answer
    x = 5,952.25

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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.