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Finding the Fourth Proportional to 66,475.80, 91,549.98 and 65,024.28

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Solution

The fourth proportional to 66,475.80, 91,549.98 and 65,024.28 is: 89,550.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475.80 : 91,549.98 = 65,024.28 : x
  2. Step 2: Convert to fraction form
    66,475.80/91,549.98 = 65,024.28/x
  3. Step 3: Cross multiply
    66,475.80x = 91,549.98 × 65,024.28
  4. Step 4: Simplify right side
    66,475.80x = 5,952,971,533.51
  5. Step 5: Solve for x
    x = 5,952,971,533.51/66,475.80
  6. Step 6: Final answer
    x = 89,550.96

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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.