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Finding the Fourth Proportional to 8,792,854.80, 13,189,282.20 and 7,281,200.40

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Solution

The fourth proportional to 8,792,854.80, 13,189,282.20 and 7,281,200.40 is: 10,921,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792,854.80 : 13,189,282.20 = 7,281,200.40 : x
  2. Step 2: Convert to fraction form
    8,792,854.80/13,189,282.20 = 7,281,200.40/x
  3. Step 3: Cross multiply
    8,792,854.80x = 13,189,282.20 × 7,281,200.40
  4. Step 4: Simplify right side
    8,792,854.80x = 96,033,806,830,352.88
  5. Step 5: Solve for x
    x = 96,033,806,830,352.88/8,792,854.80
  6. Step 6: Final answer
    x = 10,921,800.60

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Similar ratio
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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.