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Finding the Fourth Proportional to 65,152.90, 89,920.65 and 41,281.80

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Solution

The fourth proportional to 65,152.90, 89,920.65 and 41,281.80 is: 56,975.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,152.90 : 89,920.65 = 41,281.80 : x
  2. Step 2: Convert to fraction form
    65,152.90/89,920.65 = 41,281.80/x
  3. Step 3: Cross multiply
    65,152.90x = 89,920.65 × 41,281.80
  4. Step 4: Simplify right side
    65,152.90x = 3,712,086,289.17
  5. Step 5: Solve for x
    x = 3,712,086,289.17/65,152.90
  6. Step 6: Final answer
    x = 56,975.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.