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Finding the Fourth Proportional to 10,653,750.32, 15,978,875.88 and 4,586,848.70

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Solution

The fourth proportional to 10,653,750.32, 15,978,875.88 and 4,586,848.70 is: 6,879,519.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653,750.32 : 15,978,875.88 = 4,586,848.70 : x
  2. Step 2: Convert to fraction form
    10,653,750.32/15,978,875.88 = 4,586,848.70/x
  3. Step 3: Cross multiply
    10,653,750.32x = 15,978,875.88 × 4,586,848.70
  4. Step 4: Simplify right side
    10,653,750.32x = 73,292,686,057,639.36
  5. Step 5: Solve for x
    x = 73,292,686,057,639.36/10,653,750.32
  6. Step 6: Final answer
    x = 6,879,519.78

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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.