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Finding the Fourth Proportional to 15,978,045.60, 23,978,878.20 and 10,584,903.60

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Solution

The fourth proportional to 15,978,045.60, 23,978,878.20 and 10,584,903.60 is: 15,885,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978,045.60 : 23,978,878.20 = 10,584,903.60 : x
  2. Step 2: Convert to fraction form
    15,978,045.60/23,978,878.20 = 10,584,903.60/x
  3. Step 3: Cross multiply
    15,978,045.60x = 23,978,878.20 × 10,584,903.60
  4. Step 4: Simplify right side
    15,978,045.60x = 253,814,114,183,141.50
  5. Step 5: Solve for x
    x = 253,814,114,183,141.50/15,978,045.60
  6. Step 6: Final answer
    x = 15,885,178.98

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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.