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Finding the Fourth Proportional to 7,160.63, 10,688.63 and 6,633.02

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Solution

The fourth proportional to 7,160.63, 10,688.63 and 6,633.02 is: 9,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.63 : 10,688.63 = 6,633.02 : x
  2. Step 2: Convert to fraction form
    7,160.63/10,688.63 = 6,633.02/x
  3. Step 3: Cross multiply
    7,160.63x = 10,688.63 × 6,633.02
  4. Step 4: Simplify right side
    7,160.63x = 70,897,809.95
  5. Step 5: Solve for x
    x = 70,897,809.95/7,160.63
  6. Step 6: Final answer
    x = 9,901.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.