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Finding the Fourth Proportional to 10,607.08, 15,891.54 and 5,921.50

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Solution

The fourth proportional to 10,607.08, 15,891.54 and 5,921.50 is: 8,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,607.08 : 15,891.54 = 5,921.50 : x
  2. Step 2: Convert to fraction form
    10,607.08/15,891.54 = 5,921.50/x
  3. Step 3: Cross multiply
    10,607.08x = 15,891.54 × 5,921.50
  4. Step 4: Simplify right side
    10,607.08x = 94,101,754.11
  5. Step 5: Solve for x
    x = 94,101,754.11/10,607.08
  6. Step 6: Final answer
    x = 8,871.60

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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.