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Finding the Fourth Proportional to 65,875.20, 98,044.40 and 65,670.40

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Solution

The fourth proportional to 65,875.20, 98,044.40 and 65,670.40 is: 97,739.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,875.20 : 98,044.40 = 65,670.40 : x
  2. Step 2: Convert to fraction form
    65,875.20/98,044.40 = 65,670.40/x
  3. Step 3: Cross multiply
    65,875.20x = 98,044.40 × 65,670.40
  4. Step 4: Simplify right side
    65,875.20x = 6,438,614,965.76
  5. Step 5: Solve for x
    x = 6,438,614,965.76/65,875.20
  6. Step 6: Final answer
    x = 97,739.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.