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Finding the Fourth Proportional to 8,700.22, 12,007.74 and 4,925.08

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Solution

The fourth proportional to 8,700.22, 12,007.74 and 4,925.08 is: 6,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.22 : 12,007.74 = 4,925.08 : x
  2. Step 2: Convert to fraction form
    8,700.22/12,007.74 = 4,925.08/x
  3. Step 3: Cross multiply
    8,700.22x = 12,007.74 × 4,925.08
  4. Step 4: Simplify right side
    8,700.22x = 59,139,080.12
  5. Step 5: Solve for x
    x = 59,139,080.12/8,700.22
  6. Step 6: Final answer
    x = 6,797.42

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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.