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Finding the Fourth Proportional to 10,605.71, 15,897.63 and 4,763.99

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Solution

The fourth proportional to 10,605.71, 15,897.63 and 4,763.99 is: 7,141.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.71 : 15,897.63 = 4,763.99 : x
  2. Step 2: Convert to fraction form
    10,605.71/15,897.63 = 4,763.99/x
  3. Step 3: Cross multiply
    10,605.71x = 15,897.63 × 4,763.99
  4. Step 4: Simplify right side
    10,605.71x = 75,736,150.34
  5. Step 5: Solve for x
    x = 75,736,150.34/10,605.71
  6. Step 6: Final answer
    x = 7,141.07

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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.