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Finding the Fourth Proportional to 7,001.68, 9,655.20 and 5,113.56

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Solution

The fourth proportional to 7,001.68, 9,655.20 and 5,113.56 is: 7,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.68 : 9,655.20 = 5,113.56 : x
  2. Step 2: Convert to fraction form
    7,001.68/9,655.20 = 5,113.56/x
  3. Step 3: Cross multiply
    7,001.68x = 9,655.20 × 5,113.56
  4. Step 4: Simplify right side
    7,001.68x = 49,372,444.51
  5. Step 5: Solve for x
    x = 49,372,444.51/7,001.68
  6. Step 6: Final answer
    x = 7,051.51

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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.