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Finding the Fourth Proportional to 65,602.71, 90,516.29 and 48,646.17

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Solution

The fourth proportional to 65,602.71, 90,516.29 and 48,646.17 is: 67,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,602.71 : 90,516.29 = 48,646.17 : x
  2. Step 2: Convert to fraction form
    65,602.71/90,516.29 = 48,646.17/x
  3. Step 3: Cross multiply
    65,602.71x = 90,516.29 × 48,646.17
  4. Step 4: Simplify right side
    65,602.71x = 4,403,270,587.88
  5. Step 5: Solve for x
    x = 4,403,270,587.88/65,602.71
  6. Step 6: Final answer
    x = 67,120.25

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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.