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Finding the Fourth Proportional to 10,656,000.80, 15,984,001.20 and 4,672,368.80

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Solution

The fourth proportional to 10,656,000.80, 15,984,001.20 and 4,672,368.80 is: 7,008,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656,000.80 : 15,984,001.20 = 4,672,368.80 : x
  2. Step 2: Convert to fraction form
    10,656,000.80/15,984,001.20 = 4,672,368.80/x
  3. Step 3: Cross multiply
    10,656,000.80x = 15,984,001.20 × 4,672,368.80
  4. Step 4: Simplify right side
    10,656,000.80x = 74,683,148,506,042.55
  5. Step 5: Solve for x
    x = 74,683,148,506,042.55/10,656,000.80
  6. Step 6: Final answer
    x = 7,008,553.20

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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.