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Finding the Fourth Proportional to 65,411.80, 97,923.30 and 58,413.40

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Solution

The fourth proportional to 65,411.80, 97,923.30 and 58,413.40 is: 87,446.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,411.80 : 97,923.30 = 58,413.40 : x
  2. Step 2: Convert to fraction form
    65,411.80/97,923.30 = 58,413.40/x
  3. Step 3: Cross multiply
    65,411.80x = 97,923.30 × 58,413.40
  4. Step 4: Simplify right side
    65,411.80x = 5,720,032,892.22
  5. Step 5: Solve for x
    x = 5,720,032,892.22/65,411.80
  6. Step 6: Final answer
    x = 87,446.50

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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.