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Finding the Fourth Proportional to 8,968,854.80, 12,528,053.20 and 8,968,854.80

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Solution

The fourth proportional to 8,968,854.80, 12,528,053.20 and 8,968,854.80 is: 12,528,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968,854.80 : 12,528,053.20 = 8,968,854.80 : x
  2. Step 2: Convert to fraction form
    8,968,854.80/12,528,053.20 = 8,968,854.80/x
  3. Step 3: Cross multiply
    8,968,854.80x = 12,528,053.20 × 8,968,854.80
  4. Step 4: Simplify right side
    8,968,854.80x = 112,362,290,077,475.36
  5. Step 5: Solve for x
    x = 112,362,290,077,475.36/8,968,854.80
  6. Step 6: Final answer
    x = 12,528,053.20

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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.