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Finding the Fourth Proportional to 9,235,772.80, 13,853,896.80 and 4,376,939.20

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Solution

The fourth proportional to 9,235,772.80, 13,853,896.80 and 4,376,939.20 is: 6,565,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,235,772.80 : 13,853,896.80 = 4,376,939.20 : x
  2. Step 2: Convert to fraction form
    9,235,772.80/13,853,896.80 = 4,376,939.20/x
  3. Step 3: Cross multiply
    9,235,772.80x = 13,853,896.80 × 4,376,939.20
  4. Step 4: Simplify right side
    9,235,772.80x = 60,637,663,976,674.56
  5. Step 5: Solve for x
    x = 60,637,663,976,674.56/9,235,772.80
  6. Step 6: Final answer
    x = 6,565,521.40

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1.5x scale

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.