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Finding the Fourth Proportional to 7,685.52, 10,602.01 and 4,851.88

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Solution

The fourth proportional to 7,685.52, 10,602.01 and 4,851.88 is: 6,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.52 : 10,602.01 = 4,851.88 : x
  2. Step 2: Convert to fraction form
    7,685.52/10,602.01 = 4,851.88/x
  3. Step 3: Cross multiply
    7,685.52x = 10,602.01 × 4,851.88
  4. Step 4: Simplify right side
    7,685.52x = 51,439,615.14
  5. Step 5: Solve for x
    x = 51,439,615.14/7,685.52
  6. Step 6: Final answer
    x = 6,693.05

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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.