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Finding the Fourth Proportional to 7,065.32, 10,602.16 and 2,686.44

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Solution

The fourth proportional to 7,065.32, 10,602.16 and 2,686.44 is: 4,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.32 : 10,602.16 = 2,686.44 : x
  2. Step 2: Convert to fraction form
    7,065.32/10,602.16 = 2,686.44/x
  3. Step 3: Cross multiply
    7,065.32x = 10,602.16 × 2,686.44
  4. Step 4: Simplify right side
    7,065.32x = 28,482,066.71
  5. Step 5: Solve for x
    x = 28,482,066.71/7,065.32
  6. Step 6: Final answer
    x = 4,031.25

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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.