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Finding the Fourth Proportional to 9,797.61, 13,520.14 and 5,763.81

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Solution

The fourth proportional to 9,797.61, 13,520.14 and 5,763.81 is: 7,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,797.61 : 13,520.14 = 5,763.81 : x
  2. Step 2: Convert to fraction form
    9,797.61/13,520.14 = 5,763.81/x
  3. Step 3: Cross multiply
    9,797.61x = 13,520.14 × 5,763.81
  4. Step 4: Simplify right side
    9,797.61x = 77,927,421.71
  5. Step 5: Solve for x
    x = 77,927,421.71/9,797.61
  6. Step 6: Final answer
    x = 7,953.72

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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.