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Finding the Fourth Proportional to 21,143,714.55, 29,537,427.45 and 21,143,714.55

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Solution

The fourth proportional to 21,143,714.55, 29,537,427.45 and 21,143,714.55 is: 29,537,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143,714.55 : 29,537,427.45 = 21,143,714.55 : x
  2. Step 2: Convert to fraction form
    21,143,714.55/29,537,427.45 = 21,143,714.55/x
  3. Step 3: Cross multiply
    21,143,714.55x = 29,537,427.45 × 21,143,714.55
  4. Step 4: Simplify right side
    21,143,714.55x = 624,530,934,544,134.38
  5. Step 5: Solve for x
    x = 624,530,934,544,134.38/21,143,714.55
  6. Step 6: Final answer
    x = 29,537,427.45

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1.5x scale

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.