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Finding the Fourth Proportional to 65,851.76, 90,875.58 and 37,177.64

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Solution

The fourth proportional to 65,851.76, 90,875.58 and 37,177.64 is: 51,305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,851.76 : 90,875.58 = 37,177.64 : x
  2. Step 2: Convert to fraction form
    65,851.76/90,875.58 = 37,177.64/x
  3. Step 3: Cross multiply
    65,851.76x = 90,875.58 × 37,177.64
  4. Step 4: Simplify right side
    65,851.76x = 3,378,539,598.03
  5. Step 5: Solve for x
    x = 3,378,539,598.03/65,851.76
  6. Step 6: Final answer
    x = 51,305.23

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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.