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Finding the Fourth Proportional to 16,803.51, 25,209.02 and 5,117.64

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Solution

The fourth proportional to 16,803.51, 25,209.02 and 5,117.64 is: 7,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.51 : 25,209.02 = 5,117.64 : x
  2. Step 2: Convert to fraction form
    16,803.51/25,209.02 = 5,117.64/x
  3. Step 3: Cross multiply
    16,803.51x = 25,209.02 × 5,117.64
  4. Step 4: Simplify right side
    16,803.51x = 129,010,689.11
  5. Step 5: Solve for x
    x = 129,010,689.11/16,803.51
  6. Step 6: Final answer
    x = 7,677.60

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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.