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Finding the Fourth Proportional to 8,610,413.52, 12,908,918.20 and 5,571,358.16

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Solution

The fourth proportional to 8,610,413.52, 12,908,918.20 and 5,571,358.16 is: 8,352,700.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610,413.52 : 12,908,918.20 = 5,571,358.16 : x
  2. Step 2: Convert to fraction form
    8,610,413.52/12,908,918.20 = 5,571,358.16/x
  3. Step 3: Cross multiply
    8,610,413.52x = 12,908,918.20 × 5,571,358.16
  4. Step 4: Simplify right side
    8,610,413.52x = 71,920,206,750,342.52
  5. Step 5: Solve for x
    x = 71,920,206,750,342.52/8,610,413.52
  6. Step 6: Final answer
    x = 8,352,700.67

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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.