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Finding the Fourth Proportional to 18,830,247.84, 25,986,605.10 and 10,457,655.90

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Solution

The fourth proportional to 18,830,247.84, 25,986,605.10 and 10,457,655.90 is: 14,432,044.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830,247.84 : 25,986,605.10 = 10,457,655.90 : x
  2. Step 2: Convert to fraction form
    18,830,247.84/25,986,605.10 = 10,457,655.90/x
  3. Step 3: Cross multiply
    18,830,247.84x = 25,986,605.10 × 10,457,655.90
  4. Step 4: Simplify right side
    18,830,247.84x = 271,758,974,144,985.12
  5. Step 5: Solve for x
    x = 271,758,974,144,985.12/18,830,247.84
  6. Step 6: Final answer
    x = 14,432,044.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.