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Finding the Fourth Proportional to 19,920,060.30, 29,880,090.45 and 14,881,212.30

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Solution

The fourth proportional to 19,920,060.30, 29,880,090.45 and 14,881,212.30 is: 22,321,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,060.30 : 29,880,090.45 = 14,881,212.30 : x
  2. Step 2: Convert to fraction form
    19,920,060.30/29,880,090.45 = 14,881,212.30/x
  3. Step 3: Cross multiply
    19,920,060.30x = 29,880,090.45 × 14,881,212.30
  4. Step 4: Simplify right side
    19,920,060.30x = 444,651,969,529,652.56
  5. Step 5: Solve for x
    x = 444,651,969,529,652.56/19,920,060.30
  6. Step 6: Final answer
    x = 22,321,818.45

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1.5x scale

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.