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Finding the Fourth Proportional to 65,534.99, 90,437.42 and 36,854.64

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Solution

The fourth proportional to 65,534.99, 90,437.42 and 36,854.64 is: 50,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,534.99 : 90,437.42 = 36,854.64 : x
  2. Step 2: Convert to fraction form
    65,534.99/90,437.42 = 36,854.64/x
  3. Step 3: Cross multiply
    65,534.99x = 90,437.42 × 36,854.64
  4. Step 4: Simplify right side
    65,534.99x = 3,333,038,937.67
  5. Step 5: Solve for x
    x = 3,333,038,937.67/65,534.99
  6. Step 6: Final answer
    x = 50,858.92

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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.