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Finding the Fourth Proportional to 6,657,271.68, 9,986,944.32 and 2,168,503.68

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Solution

The fourth proportional to 6,657,271.68, 9,986,944.32 and 2,168,503.68 is: 3,253,093.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657,271.68 : 9,986,944.32 = 2,168,503.68 : x
  2. Step 2: Convert to fraction form
    6,657,271.68/9,986,944.32 = 2,168,503.68/x
  3. Step 3: Cross multiply
    6,657,271.68x = 9,986,944.32 × 2,168,503.68
  4. Step 4: Simplify right side
    6,657,271.68x = 21,656,725,509,875.10
  5. Step 5: Solve for x
    x = 21,656,725,509,875.10/6,657,271.68
  6. Step 6: Final answer
    x = 3,253,093.24

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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.