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Finding the Fourth Proportional to 7,347.25, 11,020.88 and 1,875.25

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Solution

The fourth proportional to 7,347.25, 11,020.88 and 1,875.25 is: 2,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.25 : 11,020.88 = 1,875.25 : x
  2. Step 2: Convert to fraction form
    7,347.25/11,020.88 = 1,875.25/x
  3. Step 3: Cross multiply
    7,347.25x = 11,020.88 × 1,875.25
  4. Step 4: Simplify right side
    7,347.25x = 20,666,905.22
  5. Step 5: Solve for x
    x = 20,666,905.22/7,347.25
  6. Step 6: Final answer
    x = 2,812.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.