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Finding the Fourth Proportional to 15,049.99, 20,762.08 and 9,746.51

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Solution

The fourth proportional to 15,049.99, 20,762.08 and 9,746.51 is: 13,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.99 : 20,762.08 = 9,746.51 : x
  2. Step 2: Convert to fraction form
    15,049.99/20,762.08 = 9,746.51/x
  3. Step 3: Cross multiply
    15,049.99x = 20,762.08 × 9,746.51
  4. Step 4: Simplify right side
    15,049.99x = 202,357,820.34
  5. Step 5: Solve for x
    x = 202,357,820.34/15,049.99
  6. Step 6: Final answer
    x = 13,445.71

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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.