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Finding the Fourth Proportional to 11,763.51, 17,643.90 and 4,368.12

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Solution

The fourth proportional to 11,763.51, 17,643.90 and 4,368.12 is: 6,551.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.51 : 17,643.90 = 4,368.12 : x
  2. Step 2: Convert to fraction form
    11,763.51/17,643.90 = 4,368.12/x
  3. Step 3: Cross multiply
    11,763.51x = 17,643.90 × 4,368.12
  4. Step 4: Simplify right side
    11,763.51x = 77,070,672.47
  5. Step 5: Solve for x
    x = 77,070,672.47/11,763.51
  6. Step 6: Final answer
    x = 6,551.67

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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.