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Finding the Fourth Proportional to 18,714,095.10, 28,071,142.65 and 10,651,938.30

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Solution

The fourth proportional to 18,714,095.10, 28,071,142.65 and 10,651,938.30 is: 15,977,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,095.10 : 28,071,142.65 = 10,651,938.30 : x
  2. Step 2: Convert to fraction form
    18,714,095.10/28,071,142.65 = 10,651,938.30/x
  3. Step 3: Cross multiply
    18,714,095.10x = 28,071,142.65 × 10,651,938.30
  4. Step 4: Simplify right side
    18,714,095.10x = 299,012,079,518,298.50
  5. Step 5: Solve for x
    x = 299,012,079,518,298.50/18,714,095.10
  6. Step 6: Final answer
    x = 15,977,907.45

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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.