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Finding the Fourth Proportional to 9,928,335.80, 14,896,002.90 and 9,578,415.80

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Solution

The fourth proportional to 9,928,335.80, 14,896,002.90 and 9,578,415.80 is: 14,370,999.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928,335.80 : 14,896,002.90 = 9,578,415.80 : x
  2. Step 2: Convert to fraction form
    9,928,335.80/14,896,002.90 = 9,578,415.80/x
  3. Step 3: Cross multiply
    9,928,335.80x = 14,896,002.90 × 9,578,415.80
  4. Step 4: Simplify right side
    9,928,335.80x = 142,680,109,534,205.84
  5. Step 5: Solve for x
    x = 142,680,109,534,205.84/9,928,335.80
  6. Step 6: Final answer
    x = 14,370,999.57

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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.