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Finding the Fourth Proportional to 8,805.68, 13,210.14 and 7,176.50

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Solution

The fourth proportional to 8,805.68, 13,210.14 and 7,176.50 is: 10,766.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.68 : 13,210.14 = 7,176.50 : x
  2. Step 2: Convert to fraction form
    8,805.68/13,210.14 = 7,176.50/x
  3. Step 3: Cross multiply
    8,805.68x = 13,210.14 × 7,176.50
  4. Step 4: Simplify right side
    8,805.68x = 94,802,569.71
  5. Step 5: Solve for x
    x = 94,802,569.71/8,805.68
  6. Step 6: Final answer
    x = 10,766.07

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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.