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Finding the Fourth Proportional to 29,615.68, 44,386.26 and 12,965.32

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Solution

The fourth proportional to 29,615.68, 44,386.26 and 12,965.32 is: 19,431.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,615.68 : 44,386.26 = 12,965.32 : x
  2. Step 2: Convert to fraction form
    29,615.68/44,386.26 = 12,965.32/x
  3. Step 3: Cross multiply
    29,615.68x = 44,386.26 × 12,965.32
  4. Step 4: Simplify right side
    29,615.68x = 575,482,064.50
  5. Step 5: Solve for x
    x = 575,482,064.50/29,615.68
  6. Step 6: Final answer
    x = 19,431.67

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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.