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Finding the Fourth Proportional to 7,020,342.90, 9,849,737.70 and 7,020,342.90

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Solution

The fourth proportional to 7,020,342.90, 9,849,737.70 and 7,020,342.90 is: 9,849,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020,342.90 : 9,849,737.70 = 7,020,342.90 : x
  2. Step 2: Convert to fraction form
    7,020,342.90/9,849,737.70 = 7,020,342.90/x
  3. Step 3: Cross multiply
    7,020,342.90x = 9,849,737.70 × 7,020,342.90
  4. Step 4: Simplify right side
    7,020,342.90x = 69,148,536,129,057.33
  5. Step 5: Solve for x
    x = 69,148,536,129,057.33/7,020,342.90
  6. Step 6: Final answer
    x = 9,849,737.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.