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Finding the Fourth Proportional to 64,695.66, 89,275.19 and 36,395.88

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Solution

The fourth proportional to 64,695.66, 89,275.19 and 36,395.88 is: 50,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,695.66 : 89,275.19 = 36,395.88 : x
  2. Step 2: Convert to fraction form
    64,695.66/89,275.19 = 36,395.88/x
  3. Step 3: Cross multiply
    64,695.66x = 89,275.19 × 36,395.88
  4. Step 4: Simplify right side
    64,695.66x = 3,249,249,102.22
  5. Step 5: Solve for x
    x = 3,249,249,102.22/64,695.66
  6. Step 6: Final answer
    x = 50,223.60

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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.