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Finding the Fourth Proportional to 34,779,472.80, 52,153,462.80 and 13,206,904.80

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Solution

The fourth proportional to 34,779,472.80, 52,153,462.80 and 13,206,904.80 is: 19,804,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,779,472.80 : 52,153,462.80 = 13,206,904.80 : x
  2. Step 2: Convert to fraction form
    34,779,472.80/52,153,462.80 = 13,206,904.80/x
  3. Step 3: Cross multiply
    34,779,472.80x = 52,153,462.80 × 13,206,904.80
  4. Step 4: Simplify right side
    34,779,472.80x = 688,785,818,189,941.50
  5. Step 5: Solve for x
    x = 688,785,818,189,941.50/34,779,472.80
  6. Step 6: Final answer
    x = 19,804,377.78

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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.