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Finding the Fourth Proportional to 65,341.32, 98,002.76 and 20,962.31

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Solution

The fourth proportional to 65,341.32, 98,002.76 and 20,962.31 is: 31,440.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,341.32 : 98,002.76 = 20,962.31 : x
  2. Step 2: Convert to fraction form
    65,341.32/98,002.76 = 20,962.31/x
  3. Step 3: Cross multiply
    65,341.32x = 98,002.76 × 20,962.31
  4. Step 4: Simplify right side
    65,341.32x = 2,054,363,641.15
  5. Step 5: Solve for x
    x = 2,054,363,641.15/65,341.32
  6. Step 6: Final answer
    x = 31,440.50

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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.