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Finding the Fourth Proportional to 65,260.51, 90,061.34 and 36,966.20

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Solution

The fourth proportional to 65,260.51, 90,061.34 and 36,966.20 is: 51,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,260.51 : 90,061.34 = 36,966.20 : x
  2. Step 2: Convert to fraction form
    65,260.51/90,061.34 = 36,966.20/x
  3. Step 3: Cross multiply
    65,260.51x = 90,061.34 × 36,966.20
  4. Step 4: Simplify right side
    65,260.51x = 3,329,224,871.57
  5. Step 5: Solve for x
    x = 3,329,224,871.57/65,260.51
  6. Step 6: Final answer
    x = 51,014.39

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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.