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Finding the Fourth Proportional to 12,038.61, 16,613.51 and 6,734.01

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Solution

The fourth proportional to 12,038.61, 16,613.51 and 6,734.01 is: 9,293.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.61 : 16,613.51 = 6,734.01 : x
  2. Step 2: Convert to fraction form
    12,038.61/16,613.51 = 6,734.01/x
  3. Step 3: Cross multiply
    12,038.61x = 16,613.51 × 6,734.01
  4. Step 4: Simplify right side
    12,038.61x = 111,875,542.48
  5. Step 5: Solve for x
    x = 111,875,542.48/12,038.61
  6. Step 6: Final answer
    x = 9,293.06

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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.